DS07-13711-3E
FUJITSU SEMICONDUCTOR
DATA SHEET
16-Bit Original Microcontroller
CMOS
F2MC-16LX MB90420G/425G Series
MB90423GA/423GB/423GC/F423GA/F423GB/F423GC/427GA/427GB/
MB90427GC428GA/428GB/428GC/F428GA/F428GB/F428GC/V420G
■DESCRIPTIONS
The FUJITSU MB90420G/425G Series is a 16-bit general purpose high-capacity microcontroller designed for
vehicle meter control applications etc.
The instruction set retains the same AT architecture as the FUJITSU original F2MC-8L and F2MC-16L series, with
fur ther refinements including high-level language instructions, expanded addressing mode, enhanced (signed)
multipler-divider computation and bit processing.
In addition, a 32-bit accumulator is built in to enable long word processing.
■FEATURES
• 16-bit input capture (4 channels)
Detects rising, falling, or both edges.
16-bit capture register × 4
Pin input edge detection latches the 16-bit free-run timer counter value, and generates an interrupt request.
• 16-bit reload timer (2 channels)
16-bit reload timer operation (select toggle output or one-shot output)
Event count function selection provided
(Continued)
■PACKAGES
Plastic QFP, 100-pin Plastic LQFP, 100-pin
(FPT-100P-M06) (FPT-100P-M05)
MB90420G/425G Series
2
• Clock timer (main clock)
Operates directly from oscillator clock.
Compensates for oscillator deviation
Read/write enabled second/minute/hour register
Signal interrupt
• 16-bit PPG (3 channels)
Output pins (3) , external trigger input pin (1)
Output clock frequencies : fCP, fCP/22, fCP/24, fCP/26
• Delay interrupt
Generates interrupt for task switching.
Interruptions to CPU can be generated/deleted by software setting.
• External interrupts (8 channels)
8-channel independent operation
Interrupt source setting available : “L” to “H” edge/ “H” to “L” edge/ “L” level/ “H” level.
• A/D converter
10-bit or 8-bit resolution × 8 channels (input multiplexed)
Conversion time : 6.13 µs or less (at fCP = 16 MHz)
External trigger startup available (P50/INT0/ADTG)
Internal timer startup available (16-bit reload timer 1)
• UART (2 channels)
Full duplex double buffer type
Supports asynchronous/synchronous transfer (with start/stop bits)
Internal timer can be selected as clock (16-bit reload timer 0)
Asynchronous : 4808 bps, 5208 bps, 9615 bps, 10417 bps, 19230 bps, 38460 bps, 62500 bps, 500000 bps
Synchronous : 500 Kbps, 1Mbps, 2Mbps (at fCP = 16 MHz)
• CAN interface *1
Conforms to CAN specifications version 2.0 Part A and B.
Automatic resend in case of error.
Automatic transfer in response to remote frame.
16 prioritized message buffers for data and messages for data and ID
Multiple message support
Receiving filter has flexible configuration : All bit compare/all bit mask/two partial bit masks
Supports up to 1 Mbps
CAN WAKEUP function (connects RX internally to INT0)
• LCD controller/driver (1 channel)
Segment driver and command driver with direct LCD panel (display) drive capability
• Low voltage/Program Looping detect reset *2
Automatic reset when low voltage is detected
Program Looping detection function
• Stepping motor controller (4 channels)
High current output for all channels × 4
Synchronized 8/10-bit PWM for all channels × 2
• Sound generator
8-bit PWM signal mixed with tone frequency from 8-bit reload counter.
PWM frequencies : 62.5 kHz, 31.2 kHz, 15.6 kHz, 7.8 kHz (at fCP = 16MHz)
Tone frequencies : 1/2 PWM frequency, divided by (reload frequency +1)
(Continued)
MB90420G/425G Series
3
(Continued)
• Input/output ports
Push-pull output and Schmitt trigger input
Programmable in bit units for input/output or peripheral signals.
•Flash memory
Supports automatic programming, Embeded AlgorithmTM, write/erase/erase pause/er ase resume instructions
Flag indicates algorithm completion
Minato Electronics flash writer
Boot block configuration
Erasable by blocks
Block protection by external programming voltage
*1 : MB90420G series has 2 channels built-in, MB90425G series has 1 channel built-in
*2 : Built-in to MB90420GA/420GB/425GA/425GB series only. Not built-in to MB90420GC/425GC series.
Embeded Algorithm is a registered trademark of Advanced Micro Devices Inc.
MB90420G/425G Series
4
■PRODUCT LINEUP
•
••
• MB90420G Series
*1 : Under development
*2 : When used with emulation pod MB2145-507, use DIP switch S2 setting. For details see the MB2145-50
Hardware Manual (2.7 “Emulator Dedicated Power Supply Pin”) .
Part
number
Parameter
MB90F423GA MB90F423GB MB90F423GC *1
MB90423GA *1
MB90423GB *1
MB90423GC MB90V420G
Configuration Flash ROM model Mask ROM model Evaluation
model
CPU F2MC-16LX CPU
Clock 1 system 2 systems 1 system 2 systems 2 systems
System clock On-chip PLL clock multiplier type ( × 1, × 2, × 3, × 4, 1/2 when PLL stopped)
Minimum instruction execution time 62.5 ns (with 4 MHz oscillator × 4)
ROM Flash ROM 128 KB Mask ROM 128 KB External
RAM 6 KB 6 KB 6 KB
CAN interface 2 channels
Low voltage/
CPU operation
detection reset Yes No Yes No No
Packages QFP100, LQFP100 PGA-256
Emulator
dedicated pow-
er supply*2
No
MB90420G/425G Series
5
•
••
• MB90425G Series
* : Under development
Note : MB90V420G can be used as evaluation model for MB90420G/425G series.
Part number
Parameter MB90F428GA MB90F428GB MB90F428GC
Configuration Flash ROM model
CPU F2MC-16LX CPU
Clock 1 system 2 systems
System clock
On-chip PLL clock multiplier type
( × 1, × 2, × 3, × 4, 1/2 when PLL stopped)
Minimum instruction execution time 62.5 ns
(with 4 MHz oscillator × 4)
ROM Flash ROM 128 KB
RAM 6 KB
CAN interface 1 channel
Low voltage/
CPU operation detection reset Yes No
Packages QFP100, LQFP100
Emulator dedicated power
supply
Part number
Parameter
*
MB90427GA *
MB90427GB *
MB90427GC *
MB90428GA *
MB90428GB *
MB90428GC
Configuration Mask ROM model
CPU F2MC-16LX CPU
Clock 1 system 2 systems 1 system 2 systems
System clock On-chip PLL clock multiplier type ( × 1, × 2, × 3, × 4, 1/2 when PLL stopped)
Minimum instruction execution time 62.5 ns (with 4 MHz oscillator × 4)
ROM Mask ROM 64 KB Mask ROM 128 KB
RAM 4 KB 6 KB
CAN interface 1 channel
Low voltage/
CPU operation
detection reset Yes No Yes No
Packages QFP100, LQFP100
Emulator dedicat-
ed power supply
MB90420G/425G Series
6
■PIN ASSIGNMENTS
•
••
• QFP 100
(TOP VIEW)
(FPT-100P-M06)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
VSS
SEG8
SEG9
SEG10
SEG11
P36/SEG12
P37/SEG13
P40/SEG14
P41/SEG15
P42/SEG16
P43/SEG17
P44/SEG18
VCC
P45/SEG19
P46/SEG20
P47/SEG21
C
P90/SEG22
P91/SEG23
V0
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
X0A
X1A
P57/SGA
RST
P56/SGO/FRCK
P55/RX0
P54/TX0
DVSS
P87/PWM2M3
P86/PWM2P3
P85/PWM1M3
P84/PWM1P3
DVCC
P83/PWM2M2
P82/PWM2P2
P81/PWM1M2
P80/PWM1P2
DVSS
P77/PWM2M1
P76/PWM2P1
P75/PWM1M1
P74/PWM1P1
DVCC
P73/PWM2M0
P72/PWM2P0
P71/PWM1M0
P70/PWM1P0
DVSS
P53/INT3
MD2
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
VSS
X0
X1
VCC
P00/SIN0/INT4
P01/SOT0/INT5
P02/SCK0/INT6
P03/SIN1/INT7
P04/SOT1
P05/SCK1/TRG
P06/PPG0/TOT1
P07/PPG1/TIN1
P10/PPG2
P11/TOT0/WOT
P12/TIN0/IN3
P13/IN2
P14/IN1
P15/IN0
COM0
COM1
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
MD1
MD0
P52/INT2 (/TX1)
P51/INT1 (/RX1)
P67/AN7
P66/AN6
P65/AN5
P64/AN4
VSS
P63/AN3
P62/AN2
P61/AN1
P60/AN0
AVSS
P50/INT0/ADTG
AVRH
AVCC
V3
V2
V1
MB90420G/425G Series
7
•
••
• LQFP 100
(TOP VIEW)
(FPT-100P-M05)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
VSS
SEG8
SEG9
SEG10
SEG11
P36/SEG12
P37/SEG13
P40/SEG14
P41/SEG15
P42/SEG16
P43/SEG17
P44/SEG18
VCC
P45/SEG19
P46/SEG20
P47/SEG21
C
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
RST
P56/SGO/FRCK
P55/RX0
P54/TX0
DVSS
P87/PWM2M3
P86/PWM2P3
P85/PWM1M3
P84/PWM1P3
DVCC
P83/PWM2M2
P82/PWM2P2
P81/PWM1M2
P80/PWM1P2
DVSS
P77/PWM2M1
P76/PWM2P1
P75/PWM1M1
P74/PWM1P1
DVCC
P73/PWM2M0
P72/PWM2P0
P71/PWM1M0
P70/PWM1P0
DVSS
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
P57/SGA
X1A
X0A
VSS
X0
X1
VCC
P00/SIN0/INT4
P01/SOT0/INT5
P02/SCK0/INT6
P03/SIN1/INT7
P04/SOT1
P05/SCK1/TRG
P06/PPG0/TOT1
P07/PPG1/TIN1
P10/PPG2
P11/TOT0/WOT
P12/TIN0/IN3
P13/IN2
P14/IN1
P15/IN0
COM0
COM1
COM2
COM3
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
P53/INT3
MD2
MD1
MD0
P52/INT2 (/TX1)
P51/INT1 (/RX1)
P67/AN7
P66/AN6
P65/AN5
P64/AN4
VSS
P63/AN3
P62/AN2
P61/AN1
P60/AN0
AVSS
P50/INT0/ADTG
AVRH
AVCC
V3
V2
V1
V0
P91/SEG23
P90/SEG22
MB90420G/425G Series
8
■PIN DESCRIPTIONS
(Continued)
Pin no. Symbol Circuit
type Description
LQFP QFP
80 82 X0 AHigh speed oscillator input pin.
81 83 X1 High speed oscillator output pin.
78 80 X0A A
Low speed oscillator input pin. If no oscillator is connected, apply
pull-down processing.
77 79 X1A Low speed oscillator output pin. If no oscillator is connected, leave
open.
75 77 RST B Reset input pin.
83 85
P00
G
General purpose input/output port.
SIN0 UART ch.0 serial data input pin.
INT4 INT4 external interrupt input pin.
84 86
P01
G
General purpose input/output port.
SOT0 UART ch.0 serial data output pin.
INT5 INT5 external interrupt input pin.
85 87
P02
G
General purpose input/output port.
SCK0 UART ch.0 serial clock input/output pin.
INT6 INT6 external interrupt input pin.
86 88
P03
G
General purpose input/output port.
SIN1 UART ch.1 serial data input pin.
INT7 INT7 external interrupt input pin.
87 89 P04 GGeneral purpose input/output port.
SOT1 UART ch.1 serial data output pin.
88 90
P05
G
General purpose input/output port.
SCK1 UART ch.1 serial clock input/output pin.
TRG 16-bit PPG ch.0-2 external trigger input pin.
89 91
P06
G
General purpose input/output port.
PPG0 16-bit PPG ch.0 output pin.
TOT1 16-bit reload timer ch.1 TOT output pin.
90 92
P07
G
General purpose input/output port.
PPG1 16-bit PPG ch.1 output pin.
TIN1 16-bit reload timer ch.1 TIN output pin.
91 93 P10 GGeneral purpose input/output port.
PPG2 16-bit PPG ch.2 output pin.
MB90420G/425G Series
9
* : MB90420G series only.
(Continued)
Pin no. Symbol Circuit
type Description
LQFP QFP
92 94
P11
G
General purpose input/output port.
TOT0 16-bit reload timer ch.0 TOT output pin.
WOT Real-time clock timer WOT output pin.
93 95
P12
G
General purpose input/output port.
TIN0 16-bit reload timer ch.0 TIN output pin.
IN3 Input capture ch.3 trigger input pin.
94 to 96 96 to 98 P13 to P15 GGeneral purpose input/output ports.
IN2 to IN0 Input capture ch.0-2 trigger input pins.
97 to 100 99 to 100,
1 to 2 COM0 to
COM3 I LCD controller/driver common output pins.
1 to 8,
10 to 13 3 to 10,
12 to 15 SEG0 to
SEG11 I LCD controller/driver segment output pins.
14 to 15 16 to 17 P36 to P37 EGeneral purpose output ports.
SEG12 to
SEG13 LCD controller/driver segment output pins.
16 to 20,
22 to 24 18 to 22,
24 to 26
P40 to P47 EGeneral purpose input output ports.
SEG14 to
SEG21 LCD controller/driver segment output pins.
26 to 27 28 to 29 P90 to P91 EGeneral purpose input output ports.
SEG22 to
SEG23 LCD controller/driver segment output pins.
34 36
P50
G
General purpose input output ports.
INT0 INT0 external interrupt input pin.
ADTG A/D converter external trigger input pin.
36 to 39,
41 to 44 38 to 41,
43 to 46
P60 to P67 FGeneral purpose input output ports.
AN0 to
AN7 A/D converter input pins.
45 47
P51
G
General purpose input output port.
INT1 INT1 external interrupt input pin.
(RX1 *) CAN interface 1 RX intput pin.
46 48
P52
G
General purpose input output port.
INT2 INT2 external interrupt input pin.
(TX1 *) CAN interface 1 TX output pin.
50 52 P53 GGeneral purpose input output port.
INT3 INT3 external interrupt input pin.
MB90420G/425G Series
10
(Continued)
Pin no. Symbol Circuit
type Description
LQFP QFP
52 to 55 54 to 57
P70 to P73
H
General purpose input output ports.
PWM1P0
PWM1M0
PWM2P0
PWM2M0
Stepping motor controller ch.0 output pins.
57 to 60 59 to 62
P74 to P77
H
General purpose input output ports.
PWM1P1
PWM1M1
PWM2P1
PWM2M1
Stepping motor controller ch.1 output pins.
62 to 65 64 to 67
P80 to P83
H
General purpose input output ports.
PWM1P2
PWM1M2
PWM2P2
PWM2M2
Stepping motor controller ch.2 output pins.
67 to 70 69 to 72
P84 to P87
H
General purpose input output ports.
PWM1P3
PWM1M3
PWM2P3
PWM2M3
Stepping motor controller ch.3 output pins.
72 74 P54 GGeneral purpose input output port.
TX0 CAN interface 0 TX output pin.
73 75 P55 GGeneral purpose output port.
RX0 CAN interface 0 RX input pin.
74 76
P56
G
General purpose input output port.
SGO Sound generator SG0 output pin.
FRCK Free-run timer clock input pin.
76 78 P57 GGeneral purpose input output port.
SGA Sound generator SGA output pin.
28 to 31 30 to 33 V0 to V3 LCD controller /driver reference power supply pins.
56, 66 58, 68 DVCC High current output buffer with dedicated power supply input pins
(pin numbers 54-57, 59-62, 64-67, 69-72) .
51, 61, 71 53, 63, 73 DVSS High current output buffer with dedicated power supply GND pins
(pin numbers 54-57, 59-62, 64-67, 69-72) .
32 34 AVCC A/D converter dedicated power supply input pin.
35 37 AVSS A/D converter dedicated GND supply pin.
33 35 AVRH A/D converter Vref + input pin. Vref − AVss.
MB90420G/425G Series
11
(Continued)
* : Type C in the flash ROM models, type D in the mask ROM models.
Pin no. Symbol Circuit
type Description
LQFP QFP
47
48 49
50 MD0
MD1 C Test mode input pins. Connect to VCC.
49 51 MD2 C/D * Text mode input pin. Connect to VSS.
25 27 C External capacitor pin. Connect an 0.1 µF capacitor between this
pin and VSS.
21, 82 23, 84 VCC Power supply input pins.
9, 40, 79 11, 42, 81 VSS GND power supply pins.
MB90420G/425G Series
12
■I/O CIRCUIT TYPE
(Continued)
Type Circuit Remarks
A
• Oscillation f eedback resistance :
approx. 1 MΩ (X0, X1 : MAIN)
• Oscillation f eedback resistance :
approx. 10 MΩ (X0A, X1A : SUB)
B
• Pull-up resistance attached :
approx. 50 kΩ, hysteresis input
C
• Hysteresis input
D
• Pull-down resistance attached :
approx. 50 kΩ, hysteresis input
E
• CMOS output
• LCDC output
• Hysteresis input
X1/X1A
X0/X0A
Standby control signal
Hysteresis input
Hysteresis input
Hyteresis input
LCDC output
Hysteresis input
MB90420G/425G Series
13
(Continued)
Type Circuit Remarks
F
• CMOS output
• Hysteresis input
• Analog input
G
• CMOS output
• Hysteresis input
H
• CMOS high current output
• Hysteresis input
I
• LCDC output
Analog input
Hysteresis input
Hysteresis input
High current
Hysteresis input
LCDC output
MB90420G/425G Series
14
■HANDLING DEVICES
When handling semiconductor devices, care must be taken with regard to the following eleven matters.
• Strictly observe maximum rated voltages (prevent latchup)
• Stable supply voltage
• Power-on procedures
• Treatment of unused input pins
• Treatment of A/D converter power supply pins
• Use of external clock signals
• Power supply pins
• Proper sequence of A/D converter power supply analog input
• Handling the power supply for high-current output buffer pins (DVCC, DVSS)
• Pull-up/pull-down resistance
• Precautions when not using a sub clock signal.
Precautions for Handling Semiconductor Devices
• Strictly observe maximum rated voltages (prevent latchup)
When CMOS integrated circuit devices are subjected to applied voltages higher than VCC at input and output
pins other than medium- and high-withstand voltage pins, or to voltages lower than VSS, or when voltages in
excess of rated levels are applied between VCC and VSS, a phenomenon known as latchup can occur. In a latchup
condition, supply current can increase dramatically and may destroy semiconductor elements. In using semi-
conductor devices, always take sufficient care to avoid exceeding maximum ratings.
Also care must be taken when power to analog systems is switched on or off, to ensure that the analog power
supply (AVCC, AVRH) , analog input and dedicated power supply for the high current output buffer pins (DVCC)
do not exceed the digital power supply (VCC) .
Once the digital pow er supply (VCC) is s witched on, the analog pow er (AVCC,AVRH) and dedicated power supply
for the high current output buffer pins (DVCC) may be turned on in any sequence.
• Stable supply voltage
Even within the warranted operating range of VCC supply voltage, sudden fluctuations in supply voltage can
cause abnormal operation. The recommended stability for ripple fluctuations (P-P values) at commercial fre-
quencies (50 to 60 Hz) should be within 10% of the standard VCC value, and voltage fluctuations that occur during
switching of power supplies etc. should be limited to transient fluctuation rates of 0.1 V/ms or less.
• Power-on procedures
In order to pre v ent abnormal operation of the internal built-in step-do wn circuits, v oltage rise time during power-
on should be attained within 50 µs (0.2 V to 2.7 V) .
• Treatment of unused input pins
If unused input pins are left open, the y ma y cause abnormal operation or latchup which ma y lead to permanent
damage to the semiconductor. Any such pins should be pulled up or pulled down through resistance of at least
2 kΩ.
Also any un used input/output pins should be left open in output status, or if found set to input status , they should
be treated in the same way as input pins.
• Treatment of A/D converter power supply pins
Even if the A/D converter is not used, pins should be connected so that AVCC = VCC, and AVSS = AVRH = VSS.
MB90420G/425G Series
15
• Use of external clock signals
Even when an external clock is used, a stabilization period is required following a power-on reset or release
from sub clock mode or stop mode . Also, when an external clock is used it should drive only the X0 pin and the
X1 pin should be left open, as shown in Figure 3.
• Power supply pins
De vices are designed to prev ent prob lems such as latchup when m ultiple VCC and VSS supply pins are used, by
providing internal connections between pins having the same potential. However, in order to reduce unwanted
radiation, and to prevent abnor mal operation of strobe signals due to rise in ground leve l, and to maintain total
output current ratings, all such pins should always be connected externally to power supplies and ground.
As shown in Figure 4, all VCC po wer supply pins m ust hav e the same potential. All VSS po wer supply pins should
be handled in the same way. If there are multiple VCC or VSS systems, the device will not operate properly even
within the warranted operating range.
In addition, care must be giv en to connecting the VCC and VSS pins of this de vice to a current source with as little
impedance as possible. It is recommended that a bypass capacitor of 1.0 µF be connected between VCC and
VSS as close to the pins as possible.
• Proper sequence of A/D converter power supply analog input
A/D converter power (AVCC, AVRH) and analog input (AN0-AN7) must be applied after the digital power supply
(VCC) is switched on. When power is shut off, the A/D converter power supply and analog input must be cut off
before the digital power supply is switched on (VCC) . In both power-on and shut-off, care should be taken that
AVRH does not exceed AVCC. Even when pins which double as analog input pins are used as input por ts, be
sure that the input voltage does not exceed AVCC. (There is no problem if analog power supplies and digital
power supplies are turned off and on at the same time.)
X0
X1
OPEN
MB90420G/425G Series
Sample external clock connection
VCC
VCC
VCC
VCC
VCC
VSS
VSS
VSS
VSS
VSS
Power supply input pins (VCC/VSS)
MB90420G/425G Series
16
• Handling the power supply for high-current output buffer pins (DVCC, DVSS)
Always apply power to high-current output buff er pins (DVCC, DVSS) after the digital power supply (VCC) is turned
on. Also when s witching power off, alw ays shut off the po wer supply to the high-current output b uffer pins (DVCC,
DVSS) before s witching off the digital po w er supply (VCC) . (There will be no problem if high-current output buffer
pins and digital power supplies are turned off and on at the same time.)
Ev en when high-current output buffer pins are used as general purpose ports, the power for high current output
buffer pins (DVCC, DVSS) should be applied to these pins.
• Pull-up/pull-down resistance
The MB90420G/425G series does not support internal pull-up/pull-down resistance. If necessary, use external
components.
• Precautions for when not using a sub clock signal.
If the X0A and X1A pins are not connected to an oscillator, apply pull-down treatment to the X0A pin and lea ve
the X1A pin open.
MB90420G/425G Series
17
■BLOCK DIAGRAM
Note: MB90420G series is equipped with 2-channel CAN interface and MB90425G series is equipped with 1-channel
CAN interface. MB90F423GA, MB90423GA, MB90423GB, MB90F428GA, MB90F428GB, MB90427GA,
MB90427GB, MB90428GA and MB90428GB have low voltage/CPU operation detection reset. MB90F423GC,
MB90423GC, MB90F428GC, MB90427GC, MB90428GC and MB90V420G do not have low voltage/CPU
operation detection reset.
See “■ Product Lineup” for detail.
X0, X1
X0A, X1A
RST
P57/SGA
P56/SGO/FRCK
P55/RX0
P54/TX0
P53/INT3
P52/INT2 (/TX1)
P51/INT1 (/RX1)
P50/INT0/ADTG
P87/PWM2M3
P86/PWM2P3
P85/PWM1M3
P84/PWM1P3
P83/PWM2M2
P82/PWM2P2
P81/PWM1M2
P80/PWM1P2
P77/PWM2M1
P76/PWM2P1
P75/PWM1M1
P74/PWM1P1
P73/PWM2M0
P72/PWM2P0
P71/PWM1M0
P70/PWM1P0
P67 - P60/
AN7 - AN0
AVCC/AVSS
AVRH
P91 - P90/
SEG23 - SEG22
P47 - P40/
SEG21 - SEG14
P37 - P36/
SEG13 - SEG12
SEG11 - SEG0
COM3 - COM0
V3 - V0
P00/SIN0/INT4
P01/SOT0/INT5
P02/SCK0/INT6
P03/SIN1/INT7
P04/SOT1
P05/SCK1/TRG
P06/PPG0/TOT1
P07/PPG1/TIN1
P10/PPG2
P11/TOT0/WOT
P12/TIN0/IN3
P13/IN2
P14/IN1
P15/IN0
RAM
ROM
UART0/1
ICU0/1/2/3
PPG0/1/2
F2MC-16LX BUS
Clock control
circuit CPU
F2MC-16LX core
Interrupt
controller
Low voltage/
CPU operation
detection reset
Sound generator
CAN controller
Prescaler
0/1
Reload timer
0/1
Real-time
Clock timer
Free-run timer
External interrupt
(8 ch)
Port 8
Port 7
Port 6
Port 9
Port 4
Port 3
Port 5
Port 0
Port 1
Stepping
motor
Controller
0/1/2/3
A/D converter
(8 ch)
LCD controller/
driver
Evaluation device (MB90V420G)
No built-in ROM
Built-in RAM is 6 KB.
MB90420G/425G Series
18
■MEMORY MAP
Note : To select models without the ROM mirror function, see the “ROM Mirror Function Selection Module.” The
image of the R OM data in the FF bank appears at the top of the 00 bank, in order to enab le efficient use of
small C compiler models. The lower 16-bit address for the FF bank will be assigned to the same address,
so that tables in ROM can be referenced without declaring a “far” indication with the pointer. For example
when accessing the address 00C000H, the actual access is to address FFC000H in ROM. Here the FF bank
ROM area exceeds 48 KB, so that it is not possible to see the entire area in the 00 bank image. Therefore
because the ROM data from FF4000H to FFFFFFH will appear in the image from 004000H to 00FFFFH, it is
recommended that the ROM data table be stored in the area from FF4000H to FFFFFFH.
000000H
0000C0H
000100H
Address #2
Address #1
003900H
004000H
010000H
FFFFFFH
Single chip mode
(with ROM mirror function)
Peripheral area
ROM area
(FF bank image)
Register
ROM area
RAM area
Peripheral area
: Internal access memory
: Access prohibited
* : MB90V420G has no built-in R OM. On the tool side this area ma y be considered a R OM
decoder.
Parts No. Address #1 Address #2
MB90423GA/GB/GC FE0000H001900H
MB90427GA/GB/GC FF0000H001100H
MB90428GA/GB/GC FE0000H001900H
MB90F423GA/GB/GC FE0000H001900H
MB90F428GA/GB/GC FE0000H001900H
MB90V420G FE0000H * 001900H
MB90420G/425G Series
19
■I/O MAP
• Other than CAN Interface
(Continued)
Address Register name Symbol Read/write Peripheral function Initial value
00HPort 0 data register PDR0 R/W Port 0 XXXXXXXX
01HPort 1 data register PDR1 R/W Port 1 - - XXXXXX
02H(Disabled)
03HPort 3 data register PDR3 R/W Port 3 X X - - - - - -
04HPort 4 data register PDR4 R/W Port 4 XXXXXXXX
05HPort 5 data register PDR5 R/W Port 5 XXXXXXXX
06HPort 6 data register PDR6 R/W Port 6 XXXXXXXX
07HPort 7 data register PDR7 R/W Port 7 XXXXXXXX
08HPort 8 data register PDR8 R/W Port 8 XXXXXXXX
09HPort 9 data register PDR9 R/W Port 9 - - - - - -XX
0AH to
0FH (Disabled)
10HPort 0 direction register DDR0 R/W Port 0 0 0 0 0 0 0 0 0
11HPort 1 direction register DDR1 R/W Port 1 - - 0 0 0 0 0 0
12H (Disabled)
13HPort 3 direction register DDR3 R/W Port 3 0 0 - - - - - -
14HPort 4 direction register DDR4 R/W Port 4 0 0 0 0 0 0 0 0
15HPort 5 direction register DDR5 R/W Port 5 0 0 0 0 0 0 0 0
16HPort 6 direction register DDR6 R/W Port 6 0 0 0 0 0 0 0 0
17HPort 7 direction register DDR7 R/W Port 7 0 0 0 0 0 0 0 0
18HPort 8 direction register DDR8 R/W Port 8 0 0 0 0 0 0 0 0
19HPort 9 direction register DDR9 R/W Port 9 - - - - - - 0 0
1AHAnalog input enable ADER R/W Port 6, A/D 1 1 1 1 1 1 1 1
1BH to
1FH (Disabled)
20HA/D control status register lower ADCSL R/W
A/D converter
0 0 0 0 0 0 0 0
21HA/D control status register higher ADCSH R/W 0 0 0 0 0 0 0 0
22HA/D data register lower ADCRL R XXXXXXXX
23HA/D data register higher ADCRH R/W 0 0 1 0 1 XXX
24HCompare clear register CPCLR R/W
16-bit free-run timer
XXXXXXXX
25HR/W XXXXXXXX
26HTimer data register TCDT R/W 0 0 0 0 0 0 0 0
27HR/W 0 0 0 0 0 0 0 0
28HTimer control status register lower TCCSL R/W 0 0 0 0 0 0 0 0
29HTimer control status register higher TCCSH R/W 0 - - 0 0 0 0 0
MB90420G/425G Series
20
(Continued)
Address Register name Symbol Read/write Peripheral function Initial value
2AHPPG0 control status register lower PCNTL0 R/W 16-bit PPG0 0 0 0 0 0 0 0 0
2BHPPG0 control status register higher PCNTH0 R/W 0 0 0 0 0 0 0 -
2CHPPG1 control status register lower PCNTL1 R/W 16-bit PPG1 0 0 0 0 0 0 0 0
2DHPPG1 control status register higher PCNTH1 R/W 0 0 0 0 0 0 0 -
2EHPPG2 control status register lower PCNTL2 R/W 16-bit PPG2 0 0 0 0 0 0 0 0
2FHPPG2 control status register higher PCNTH2 R/W 0 0 0 0 0 0 0 -
30HExternal interrupt enable ENIR R/W
External interrupt
0 0 0 0 0 0 0 0
31HExternal interrupt request EIRR R/W 0 0 0 0 0 0 0 0
32HExternal interrupt level lower ELVRL R/W 0 0 0 0 0 0 0 0
33HExternal interrupt level higher ELVRH R/W 0 0 0 0 0 0 0 0
34HSerial mode register 0 SMR0 R/W
UART 0
0 0 0 0 0 - 0 0
35HSerial control register 0 SCR0 R/W 0 0 0 0 0 1 0 0
36HInput data register 0/
Output data register 0 SIDR0/
SODR0 R/W XXXXXXXX
37HSerial status register 0 SSR0 R/W 0 0 0 0 1 0 0 0
38HSerial mode register 1 SMR1 R/W
UART1
0 0 0 0 0 − 0 0
39HSerial control register 1 SCR1 R/W 0 0 0 0 0 1 0 0
3AHInput data register 1/
Output data register 1 SIDR1/
SODR1 R/W XXXXXXXX
3BHSerial status register 1 SSR1 R/W 0 0 0 0 1 0 0 0
3CH (Disabled)
3DHClock division control register 0 CDCR0 R/W Prescaler 0 - - - 0 0 0 0
3EHCAN wake-up control register CWUCR R/W CAN - - - - - - - 0
3FHClock division control register 1 CDCR1 R/W Prescaler 0 - - - 0 0 0 0
40H to 4FH Area reserved for CAN interface 0
50HTimer control status register 0 lower TMCSR0L R/W
16-bit reload timer 0
0 0 0 0 0 0 0 0
51HTimer control status register 0 high-
er TMCSR0H R/W - - - 0 0 0 0 0
52HTimer register 0/
Reload register 0 TMR0/
TMRLR0 R/W XXXXXXXX
53HXXXXXXXX
54HTimer control status register 1 lower TMCSR1L R/W
16-bit reload timer 1
0 0 0 0 0 0 0 0
55HTimer control status register 1 high-
er TMCSR1H R/W - - - 0 0 0 0 0
56HTimer register 1/
Reload register 1 TMR1/
TMRLR1 R/W XXXXXXXX
57HXXXXXXXX
58HClock timer control register lower WTCRL R/W Real-time
clock timer 0 0 0 - - 0 0 0
59HClock timer control register higher WTCRH R/W 0 0 0 0 0 0 0 0
MB90420G/425G Series
21
(Continued)
Address Register name Symbol Read/write Peripheral function Initial value
5AHSound control register lower SGCRL R/W
Sound generator
0 0 0 0 0 0 0 0
5BHSound control register higher SGCRH R/W 0 - - - - - 0 0
5CHFrequency data register SGFR R/W XXXXXXXX
5DHAmplitude data register SGAR R/W 0 0 0 0 0 0 0 0
5EHDecrement grade register SGDR R/W XXXXXXXX
5FHTone count register SGTR R/W XXXXXXXX
60HInput capture register 0 IPCP0 R
Input capture 0/1
XXXXXXXX
61HXXXXXXXX
62HInput capture register 1 IPCP1 R XXXXXXXX
63HXXXXXXXX
64HInput capture register 2 IPCP2 R
Input capture 2/3
XXXXXXXX
65HXXXXXXXX
66HInput capture register 3 IPCP3 R XXXXXXXX
67HXXXXXXXX
68HInput capture control status 0/1 ICS01 R/W Input capture 0/1 0 0 0 0 0 0 0 0
69H (Disabled)
6AHInput capture control status 2/3 ICS23 R/W Input capture 2/3 0 0 0 0 0 0 0 0
6BH (Disabled)
6CHLCD control register lower LCRL R/W LCD controller/
driver 0 0 0 1 0 0 0 0
6DHLCD control register higher LCRH R/W 0 0 0 0 0 0 0 0
6EHLow voltage/CPU operation
detection reset control register LVRC R/W Low voltage/CPU opera-
tion detection reset 1 0 1 1 1 0 0 0
6FHROM mirror ROMM W ROM mirror XXXXXXX1
70H to 7FHArea reserved for CAN interface 1
80HPWM control register 0 PWC0 R/W Stepping motor
controller0 0 0 0 0 0 - - 0
81H (Disabled)
82HPWM control register 1 PWC1 R/W Stepping motor
controller1 0 0 0 0 0 - - 0
83H (Disabled)
84HPWM control register 2 PWC2 R/W Stepping motor controller2 0 0 0 0 0 - - 0
85H (Disabled)
86HPWM control register 3 PWC3 R/W Stepping motor controller3 0 0 0 0 0 - - 0
87H to
9DH (Disabled)
MB90420G/425G Series
22
(Continued)
Address Register name Symbol Read/write Peripheral function Initial value
9EHROM correction control register PACSR R/W Address match
detection function - - - - - 0 - 0
9FHDelay interrupt/release DIRR R/W Delayed interrupt - - - - - - - 0
A0HPower saving mode LPMCR R/W Power saving
control circuit 0 0 0 1 1 0 0 0
A1HClock select CKSCR R/W 1 1 1 1 1 1 0 0
A2H to
A7H (Disabled)
A8HWatchdog control WDTC R/W Watchdog timer XXXXX 1 1 1
A9HTime base timer control register TBTC R/W Time base timer 1 - - 0 0 1 0 0
AAHClock timer control register WTC R/W Clock timer
(sub clock) 1 X 0 0 0 0 0 0
ABH to
ADH (Disabled)
AEHFlash control register FMCS R/W Flash interface 0 0 0 X 0 XX 0
AFH (Disabled)
B0HInterrupt control register 00 ICR00 R/W
Interrupt controller
0 0 0 0 0 1 1 1
B1HInterrupt control register 01 ICR01 R/W 0 0 0 0 0 1 1 1
B2HInterrupt control register 02 ICR02 R/W 0 0 0 0 0 1 1 1
B3HInterrupt control register 03 ICR03 R/W 0 0 0 0 0 1 1 1
B4HInterrupt control register 04 ICR04 R/W 0 0 0 0 0 1 1 1
B5HInterrupt control register 05 ICR05 R/W 0 0 0 0 0 1 1 1
B6HInterrupt control register 06 ICR06 R/W 0 0 0 0 0 1 1 1
B7HInterrupt control register 07 ICR07 R/W 0 0 0 0 0 1 1 1
B8HInterrupt control register 08 ICR08 R/W 0 0 0 0 0 1 1 1
B9HInterrupt control register 09 ICR09 R/W 0 0 0 0 0 1 1 1
BAHInterrupt control register 10 ICR10 R/W 0 0 0 0 0 1 1 1
BBHInterrupt control register 11 ICR11 R/W 0 0 0 0 0 1 1 1
BCHInterrupt control register 12 ICR12 R/W 0 0 0 0 0 1 1 1
BDHInterrupt control register 13 ICR13 R/W 0 0 0 0 0 1 1 1
BEHInterrupt control register 14 ICR14 R/W 0 0 0 0 0 1 1 1
BFHInterrupt control register 15 ICR15 R/W 0 0 0 0 0 1 1 1
C0H to
FFH (Disabled)
MB90420G/425G Series
23
(Continued)
Address Register name Symbol Read/write Peripheral function Initial value
1FF0HROM correction address 0 PADR0 R/W
Address match
detection function
XXXXXXXX
1FF1HROM correction address 1 PADR0 R/W XXXXXXXX
1FF2HROM correction address 2 PADR0 R/W XXXXXXXX
1FF3HROM correction address 3 PADR1 R/W XXXXXXXX
1FF4HROM correction address 4 PADR1 R/W XXXXXXXX
1FF5HROM correction address 5 PADR1 R/W XXXXXXXX
3900H to
391FH (Disabled)
3920HPPG0 down counter register PDCR0 R
16-bit PPG 0
1 1 1 1 1 1 1 1
3921H1 1 1 1 1 1 1 1
3922HPPG0 cycle setting register PCSR0 W XXXXXXXX
3923HXXXXXXXX
3924HPPG0 duty setting register PDUT0 W XXXXXXXX
3925HXXXXXXXX
3926H to
3927H (Disabled)
3928HPPG1 down counter register PDCR1 R
16-bit PPG 1
1 1 1 1 1 1 1 1
3929H1 1 1 1 1 1 1 1
392AHPPG1 cycle setting register PCSR1 W XXXXXXXX
392BHXXXXXXXX
392CHPPG1 duty setting register PDUT1 W XXXXXXXX
392DHXXXXXXXX
392EH to
392FH (Disabled)
3930HPPG2 down counter register PDCR2 R
16 bit PPG 2
1 1 1 1 1 1 1 1
3931H1 1 1 1 1 1 1 1
3932HPPG2 cycle setting register PCSR2 W XXXXXXXX
3933HXXXXXXXX
3934HPPG2 duty setting register PDUT2 W XXXXXXXX
3935HXXXXXXXX
3936H to
3959H (Disabled)
MB90420G/425G Series
24
(Continued)
Address Register name Symbol Read/write Peripheral function Initial value
395AH
Sub second data register WTBR R/W
Real time
clock timer
XXXXXXXX
395BHXXXXXXXX
395CH- - - XXXXX
395DHSecond data register WTSR R/W - - XXXXXX
395EHMinute data register WTMR R/W - - XXXXXX
395FHHour data register WTHR R/W - - - XXXXX
3960H to
396BHLCD display RAM VRAM R/W LCD controller/
driver XXXXXXXX
396CH to
397FH (Disabled)
3980HPWM1 compare register 0 PWC10 R/W
Stepping motor
controller 0
XXXXXXXX
3981H- - - - - - XX
3982HPWM2 compare register 0 PWC20 R/W XXXXXXXX
3983H- - - - - - XX
3984HPWM1 select register 0 PWS10 R/W - - 0 0 0 0 0 0
3985HPWM2 select register 0 PWS20 R/W - 0 0 0 0 0 0 0
3986H to
3987H (Disabled)
3988HPWM1 compare register 1 PWC11 R/W
Stepping motor
controller 1
XXXXXXXX
3989H- - - - - - XX
398AHPWM2 compare register 1 PWC21 R/W XXXXXXXX
398BH- - - - - - XX
398CHPWM1 select register 1 PWS11 R/W - - 0 0 0 0 0 0
398DHPWM2 select register 1 PWS21 R/W - 0 0 0 0 0 0 0
398EH to
398FH (Disabled)
3990HPWM1 compare register 2 PWC12 R/W
Stepping motor
controller 2
XXXXXXXX
3991H- - - - - - XX
3992HPWM2 compare register 2 PWC22 R/W XXXXXXXX
3993H- - - - - - XX
3994HPWM1 select register 2 PWS12 R/W - - 0 0 0 0 0 0
3995HPWM2 select register 2 PWS22 R/W - 0 0 0 0 0 0 0
3996H to
3997H (Disabled)
MB90420G/425G Series
25
(Continued)
• Initial value symbols :
“0” initial value 0.
“1” initial value 1.
“X” initial value undetermined
“-” initial value undetermined (none)
• Write/read symbols :
“R/W” read/write enabled
“R” read only
“W” write only
• Addresses in the area 0000H to 00FFH are reserved for the principal functions of the MCU. Read access
attempts to reserved areas will result in an “X” value. Also, write access to reserved areas is prohibited.
Address Register name Symbol Read/write Peripheral function Initial value
3998HPWM1 compare register 3 PWC13 R/W
Stepping motor
controller 3
XXXXXXXX
3999H- - - - - - XX
399AHPWM2 compare register 3 PWC23 R/W XXXXXXXX
399BH- - - - - - XX
399CHPWM1 select register 3 PWS13 R/W - - 0 0 0 0 0 0
399DHPWM2 select register 3 PWS23 R/W - 0 0 0 0 0 0 0
399EH to
39FFH (Disabled)
3A00H to
3AFFHArea reserved for CAN interface 0
3B00H to
3BFFHArea reserved for CAN interface 1
3C00H to
3CFFHArea reserved for CAN interface 0
3D00H to
3DFFHArea reserved for CAN interface 1
3E00H to
3EFFH (Disabled)
MB90420G/425G Series
26
• I/O Map for CAN Interface
(Continued)
Address Register name Symbol Read/
write Initial value
CAN0 CAN1
000040H000070HMessage buffer valid area BVALR (R/W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
000041H000071H
000042H000072HTransmission request register TREQR (R/W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
000043H000073H
000044H000074HTransmission cancel register TCANR (W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
000045H000075H
000046H000076HTransmission completed register TCR (R/W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
000047H000077H
000048H000078HReceiving completed register RCR (R/W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
000049H000079H
00004AH00007AHRemote request receiving register RRTRR (R/W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
00004BH00007BH
00004CH00007CHReceiving overrun register ROVRR (R/W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
00004DH00007DH
00004EH00007EHReceiving interrupt enable register RIER (R/W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
00004FH00007FH
003C00H003D00HControl status register CSR (R/W, R) 0 0 - - - 0 0 0 0 - - - - 0 - 1
003C01H003D01H
003C02H003D02HLast event indicator register LEIR (R/W) - - - - - - - - 0 0 0 - 0 0 0 0
003C03H003D03H
003C04H003D04HRX/TX error counter RTEC (R) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
003C05H003D05H
003C06H003D06HBit timing register BTR (R/W) - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
003C07H003D07H
003C08H003D08HIDE register IDER (R/W) XXXXXXXX XXXXXXXX
003C09H003D09H
003C0AH003D0AHTransmission RTR register TRTRR (R/W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
003C0BH003D0BH
003C0CH003D0CHRemote frame receiving wait register RFWTR (R/W) XXXXXXXX XXXXXXXX
003C0DH003D0DH
003C0EH003D0EHTransmission interrupt enable register TIER (R/W) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
003C0FH003D0FH
MB90420G/425G Series
27
(Continued)
Address Register name Symbol Read/
write Initial value
CAN0 CAN1
003C10H003D10H
Acceptance mask select register AMSR (R/W)
XXXXXXXX XXXXXXXX
003C11H003D11H
003C12H003D12HXXXXXXXX XXXXXXXX
003C13H003D13H
003C14H003D14H
Acceptance mask register 0 AMR0 (R/W)
XXXXXXXX XXXXXXXX
003C15H003D15H
003C16H003D16HXXXXX- - - XXXXXXXX
003C17H003D17H
003C18H003D18H
Acceptance mask register 1 AMR1 (R/W)
XXXXXXXX XXXXXXXX
003C19H003D19H
003C1AH003D1AHXXXXX- - - XXXXXXXX
003C1BH003D1BH
003A00H
to
003A1FH
003B00H
to
003B1FHGeneral purpose RAM (R/W) XXXXXXXX to XXXXXXXX
003A20H003B20H
ID register 0 IDR0 (R/W)
XXXXXXXX XXXXXXXX
003A21H003B21H
003A22H003B22HXXXXX- - - XXXXXXXX
003A23H003B23H
003A24H003B24H
ID register 1 IDR1 (R/W)
XXXXXXXX XXXXXXXX
003A25H003B25H
003A26H003B26HXXXXX- - - XXXXXXXX
003A27H003B27H
003A28H003B28H
ID register 2 IDR2 (R/W)
XXXXXXXX XXXXXXXX
003A29H003B29H
003A2AH003B2AHXXXXX- - - XXXXXXXX
003A2BH003B2BH
003A2CH003B2CH
ID register 3 IDR3 (R/W)
XXXXXXXX XXXXXXXX
003A2DH003B2DH
003A2EH003B2EHXXXXX- - - XXXXXXXX
003A2FH003B2FH
003A30H003B30H
ID register 4 IDR4 (R/W)
XXXXXXXX XXXXXXXX
003A31H003B31H
003A32H003B32HXXXXX- - - XXXXXXXX
003A33H003B33H
MB90420G/425G Series
28
(Continued)
Address Register name Symbol Read/
write Initial value
CAN0 CAN1
003A34H003B34H
ID register 5 IDR5 (R/W)
XXXXXXXX XXXXXXXX
003A35H003B35H
003A36H003B36HXXXXX- - - XXXXXXXX
003A37H003B37H
003A38H003B38H
ID register 6 IDR6 (R/W)
XXXXXXXX XXXXXXXX
003A39H003B39H
003A3AH003B3AHXXXXX- - - XXXXXXXX
003A3BH003B3BH
003A3CH003B3CH
ID register 7 IDR7 (R/W)
XXXXXXXX XXXXXXXX
003A3DH003B3DH
003A3EH003B3EHXXXXX- - - XXXXXXXX
003A3FH003B3FH
003A40H003B40H
ID register 8 IDR8 (R/W)
XXXXXXXX XXXXXXXX
003A41H003B41H
003A42H003B42HXXXXX- - - XXXXXXXX
003A43H003B43H
003A44H003B44H
ID register 9 IDR9 (R/W)
XXXXXXXX XXXXXXXX
003A45H003B45H
003A46H003B46HXXXXX- - - XXXXXXXX
003A47H003B47H
003A48H003B48H
ID register 10 IDR10 (R/W)
XXXXXXXX XXXXXXXX
003A49H003B49H
003A4AH003B4AHXXXXX- - - XXXXXXXX
003A4BH003B4BH
003A4CH003B4CH
ID register 11 IDR11 (R/W)
XXXXXXXX XXXXXXXX
003A4DH003B4DH
003A4EH003B4EHXXXXX- - - XXXXXXXX
003A4FH003B4FH
003A50H003B50H
ID register 12 IDR12 (R/W)
XXXXXXXX XXXXXXXX
003A51H003B51H
003A52H003B52HXXXXX- - - XXXXXXXX
003A53H003B53H
MB90420G/425G Series
29
(Continued)
Address Register name Symbol Read/
write Initial value
CAN0 CAN1
003A54H003B54H
ID register 13 IDR13 (R/W)
XXXXXXXX XXXXXXXX
003A55H003B55H
003A56H003B56HXXXXX- - - XXXXXXXX
003A57H003B57H
003A58H003B58H
ID register 14 IDR14 (R/W)
XXXXXXXX XXXXXXXX
003A59H003B59H
003A5AH003B5AHXXXXX- - - XXXXXXXX
003A5BH003B5BH
003A5CH003B5CH
ID register 15 IDR15 (R/W)
XXXXXXXX XXXXXXXX
003A5DH003B5DH
003A5EH003B5EHXXXXX- - - XXXXXXXX
003A5FH003B5FH
003A60H003B60HDLC register 0 DLCR0 (R/W) - - - -XXXX - - - -XXXX
003A61H003B61H
003A62H003B62HDLC register 1 DLCR1 (R/W) - - - -XXXX - - - -XXXX
003A63H003B63H
003A64H003B64HDLC register 2 DLCR2 (R/W) - - - -XXXX - - - -XXXX
003A65H003B65H
003A66H003B66HDLC register 3 DLCR3 (R/W) - - - -XXXX - - - -XXXX
003A67H003B67H
003A68H003B68HDLC register 4 DLCR4 (R/W) - - - -XXXX - - - -XXXX
003A69H003B69H
003A6AH003B6AHDLC register 5 DLCR5 (R/W) - - - -XXXX - - - -XXXX
003A6BH003B6BH
003A6CH003B6CHDLC register 6 DLCR6 (R/W) - - - -XXXX - - - -XXXX
003A6DH003B6DH
003A6EH003B6EHDLC register 7 DLCR7 (R/W) - - - -XXXX - - - -XXXX
003A6FH003B6FH
003A70H003B70HDLC register 8 DLCR8 (R/W) - - - -XXXX - - - -XXXX
003A71H003B71H
003A72H003B72HDLC register 9 DLCR9 (R/W) - - - -XXXX - - - -XXXX
003A73H003B73H
003A74H003B74HDLC register 10 DLCR10 (R/W) - - - -XXXX - - - -XXXX
003A75H003B75H
MB90420G/425G Series
30
(Continued)
Address Register name Symbol Read/
write Initial value
CAN0 CAN1
003A76H003B76HDLC register 11 DLCR11 (R/W) - - - -XXXX - - - -XXXX
003A77H003B77H
003A78H003B78HDLC register 12 DLCR12 (R/W) - - - -XXXX - - - -XXXX
003A79H003B79H
003A7AH003B7AHDLC register 13 DLCR13 (R/W) - - - -XXXX - - - -XXXX
003A7BH003B7BH
003A7CH003B7CHDLC register 14 DLCR14 (R/W) - - - -XXXX - - - -XXXX
003A7DH003B7DH
003A7EH003B7EHDLC register 15 DLCR15 (R/W) - - - -XXXX - - - -XXXX
003A7FH003B7FH
003A80H
to
003A87H
003B80H
to
003B87HData register 0 (8 bytes) DTR0 (R/W) XXXXXXXX to XXXXXXXX
003A88H
to
003A8FH
003B88H
to
003B8FHData register 1 (8 bytes) DTR1 (R/W) XXXXXXXX to XXXXXXXX
003A90H
to
003A87H
003B90H
to
003B97HData register 2 (8 bytes) DTR2 (R/W) XXXXXXXX to XXXXXXXX
003A98H
to
003A9FH
003B98H
to
003B9FHData register 3 (8 bytes) DTR3 (R/W) XXXXXXXX to XXXXXXXX
003AA0H
to
003AA7H
003BA0H
to
003BA7HData register 4 (8 bytes) DTR4 (R/W) XXXXXXXX to XXXXXXXX
003AA8H
to
003AAFH
003BA8H
to
003BAFHData register 5 (8 bytes) DTR5 (R/W) XXXXXXXX to XXXXXXXX
003AB0H
to
003AB7H
003BB0H
to
003BB7HData register 6 (8 bytes) DTR6 (R/W) XXXXXXXX to XXXXXXXX
003AB8H
to
003ABFH
003BB8H
to
003BBFHData register 7 (8 bytes) DTR7 (R/W) XXXXXXXX to XXXXXXXX
003AC0H
to
003AC7H
003BC0H
to
003BC7HData register 8 (8 bytes) DTR8 (R/W) XXXXXXXX to XXXXXXXX
003AC8H
to
003ACFH
003BC8H
to
003BCFHData register 9 (8 bytes) DTR9 (R/W) XXXXXXXX to XXXXXXXX
MB90420G/425G Series
31
(Continued)
Address Register name Symbol Read/
write Initial value
CAN0 CAN1
003AD0H
to
003AD7H
003BD0H
to
003BD7HData register 10 (8 bytes) DTR10 (R/W) XXXXXXXX to XXXXXXXX
003AD8H
to
003ADFH
003BD8H
to
003BDFHData register 11 (8 bytes) DTR11 (R/W) XXXXXXXX to XXXXXXXX
003AE0H
to
003AE7H
003BE0H
to
003BE7HData register 12 (8 bytes) DTR12 (R/W) XXXXXXXX to XXXXXXXX
003AE8H
to
003AEFH
003BE8H
to
003BEFHData register 13 (8 bytes) DTR13 (R/W) XXXXXXXX to XXXXXXXX
003AF0H
to
003AF7H
003BF0H
to
003BF7HData register 14 (8 bytes) DTR14 (R/W) XXXXXXXX to XXXXXXXX
003AF8H
to
003AFFH
003BF8H
to
003BFFHData register 15 (8 bytes) DTR15 (R/W) XXXXXXXX to XXXXXXXX
MB90420G/425G Series
32
■INTERRUPT SOURCES, INTERRUPT VECTORS, AND INTERRUPT CONTRO L REGISTERS
Interrupt source EI2OS
compatible Interrupt vector Interrupt control register Priority
*2
Number Address ICR Address
Reset × #08 08HFFFFDCHHigh
INT9 instruction × #09 09HFFFFD8H
Exception processing × #10 0AHFFFFD4H
CAN0 RX × #11 0BHFFFFD0HICR00 0000B0H *1
CAN0 TX/NS × #12 0CHFFFFCCH
CAN1 RX × #13 0DHFFFFC8HICR01 0000B1H *1
CAN1 TX/NS × #14 0EHFFFFC4H
Input capture 0 #15 0FHFFFFC0HICR02 0000B2H *1
DTP/external interrupt - ch 0 detected #16 10HFFFFBCH
Reload timer 0 #17 11HFFFFB8HICR03 0000B3H *1
DTP/external interrupt - ch 1 detected #18 12HFFFFB4H
Input capture 1 #19 13HFFFFB0HICR04 0000B4H *1
DTP/external interrupt - ch 2 detected #20 14HFFFFACH
Input capture 2 #21 15HFFFFA8HICR05 0000B5H *1
DTP/external interrupt - ch 3 detected #22 16HFFFFA4H
Input capture 3 #23 17HFFFFA0HICR06 0000B6H *1
DTP/external interrupt - ch 4/5 detected #24 18HFFFF9CH
PPG timer 0 #25 19HFFFF98HICR07 0000B7H *1
DTP/external interrupt - ch 6/7 detected #26 1AHFFFF94H
PPG timer 1 #27 1BHFFFF90HICR08 0000B8H *1
Reload timer 1 #28 1CHFFFF8CH
PPG timer 2 #29 1DHFFFF88HICR09 0000B9H *1
Real time clock timer × #30 1EHFFFF84H
Free-run timer over flow × #31 1FHFFFF80HICR10 0000BAH *1
A/D converter conversion end #32 20HFFFF7CH
Free-run timer clear × #33 21HFFFF78HICR11 0000BBH *1
Sound generator × #34 22HFFFF74H
Time base timer × #35 23HFFFF70HICR12 0000BCH *1
Clock timer (sub clock) × #36 24HFFFF6CH
UART 1 RX #37 25HFFFF68HICR13 0000BDH *1
UART 1 TX #38 26HFFFF64H
UART 0 RX #39 27HFFFF60HICR14 0000BEH *1
UART 0 TX #40 28HFFFF5CH
Flash memory status × #41 29HFFFF58HICR15 0000BFH *1
Delayed interrupt generator module × #42 2AHFFFF54HLow
MB90420G/425G Series
33
: Compatible, with EI2OS stop function
: Compatible
: Compatible when interrupt sources sharing ICR are not in use
× : Not compatible
*1 : • Peripheral functions sharing the ICR register have the same interrupt level.
• If peripheral functions sharing the ICR register are using expanded intelligent I/O services, one or the other
cannot be used.
• When peripheral functions are sharing the ICR register and one specifies expanded intelligent I/O services,
the interrupt from the other function cannot be used.
*2 : Priority applies when interrupts of the same level are generated.
MB90420G/425G Series
34
■PERIPHERAL FUNCTIONS
1. I/O Ports
The I/O ports function is to send data from the CPU to be output from I/O pins and load input signals at the I/O
pins into the CPU, according to the port data register (PDR) . Port input/output at I/O pins can be controlled in
bit units by the port direction register (DDR) as required. The following list shows each of the functions as well
as the shared peripheral function for each port.
• Port 0 : General purpose I/O port, shared with peripheral functions (external interrupt/UART/PPG)
• Port 1 : General purpose I/O port, shared with peripheral functions (PPG/reload timer/clock timer/ICU)
• Port 3 : General purpose I/O port, shared with peripheral functions (LCD)
• Port 4 : General purpose I/O port, shared with peripheral functions (LCD)
• Port 5 : General purpose I/O port, shared with peripheral functions (External interrupt/CAN/SG)
• Port 6 : General purpose I/O port, shared with peripheral functions (A/D converter)
• Port 7 : General purpose I/O port, shared with peripheral functions (Stepping motor controller)
• Port 8 : General purpose I/O port, shared with peripheral functions (Stepping motor controller)
• Port 9 : General purpose I/O port, shared with peripheral functions (LCD)
(1) List of Functions
*: Range of input voltage.
For ratings see “3. DC Characteristics” in “■ ELECTRICAL CHARACTERISTICS”.
Port Pin name Input
format Output
format Function bit15 bit14 bit13 bit12
Port 0 P00/SIN0/INT4
to P07/PPG1
CMOS
(hysteresis)
(Automotive level*)
CMOS
General purpose I/O port
Peripheral function
Port 1 P10/PPG2 to
P15/IN0
General purpose I/O port P15 P14
Peripheral function IN0 IN1
Port 3 P36/SEG12 to
P37/SEG13 General purpose I/O port P37 P36
Peripheral function SEG13 SEG12
Port 4 P40/SEG14 to
P47/SEG21 General purpose I/O port
Peripheral function
Port 5 P50/INT0 to
P57/SGA
General purpose I/O port P57 P56 P55 P54
Peripheral function SGA SGO RX0 TX0
FRCK
Port 6 P60/AN0 to
P67/AN7
Analog
CMOS
(hysteresis)
(Automotive level*)
General purpose I/O port
Peripheral function
Port 7 P70/PWM1P0
to
P77/PWM2M1 CMOS
(hysteresis)
(Automotive level*)
General purpose I/O port P77 P76 P75 P74
Peripheral function PWM2M1 PWM2P1 PWM1M
1PWM1P1
Port 8 P80/PWM1P2
to
P87/PWM2M3
General purpose I/O port
Peripheral function
Port 9 P90/SEG22 to
P91/SEG23 General purpose I/O port
Peripheral function
MB90420G/425G Series
35
(Continued)
Note : Port 6 also functions as an analog input pin. When using this port as a general purpose port, always write
“0” to the corresponding analog input enable register (ADER) bit. The ADER bit is initialized to “1” at reset.
Port bit11 bit10 bit9 bit8 bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
Port 0
P07 P06 P05 P04 P03 P02 P01 P00
PPG1 PPG0 SCK1 SOT1 SIN1 SCK0 SOT0 SIN0
TIN1 TOT1 INT7 INT6 INT5 INT4
Port 1
P13 P12 P11 P10
IN2 IN3 WOT PPG2
TIN0 TOT0
Port 3
Port 4 P47 P46 P45 P44 P43 P42 P41 P40
SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14
Port 5
P53 P52 P51 P50
INT3 INT2 INT1 INT0
TX1 RX1
Port 6 P67 P66 P65 P64 P63 P62 P61 P60
AN7 AN6 AN5 AN4 AN3 AN2 AN1 AN0
Port 7 P73 P72 P71 P70
PWM2M0 PWM2P0 PWM1M0 PWM1P0
Port 8 P87 P86 P85 P84 P83 P82 P81 P80
PWM2M3 PWM2P3 PWM1M3 PWM1P3 PWM2M2 PWM2P2 PWM1M2 PWM1P2
Port 9 P91 P90
SEG23 SEG22
MB90420G/425G Series
36
(2) Block Diagrams
Ports 0, 1, 3, 4, 5, 7, 8, 9
Peripheral function input
Peripheral function output
Peripheral function output enabled
PDR (Port data register)
DDR (Port direction register)
Internal data bus
PDR read
DDR read
Output latch
Direction
latch
PDR write
DDR write
Pin
Standby control (SPL = 1)
or LCD output enabled
ADER
Port 6
PDR (Port data register)
DDR (Port direction register)
Analog input
RDR read
PDR write
Internal data bus
Output latch
Pin
Direction
latch
DDR write
DDR read Standby control (SPL = 1)
MB90420G/425G Series
37
2. Watchdog Timer/Time Base Timer/Clock Timer
The watchdog timer, timer base timer, and clock timer have the following circuit configuration.
• Watchdog timer : Watchdog counter, control register, watchdog reset circuit
• Time base timer : 18-bit timer, interval interrupt control circuit
• Clock timer : 15-bit timer, interval interrupt control circuit
(1) Watchdog timer function
The watchdog timer is composed of a 2-bit watchdog counter that uses the carr y signal from the 18-bit time
base timer or 15-bit clock timer as a clock source, plus a control register and watchdog reset control circuit.
After startup, this function will reset the CPU if not cleared within a given time.
(2) Time base timer function
The time base timer is an 18-bit free-run counter (time base counter) synchronized with the internal count clock
(base oscillator divided by 2) , with an interval timer function providing a selection of four interval times. Other
functions include a timer output for an oscillator stabilization wait time and clock feed to the watchdog timer or
other operating clocks. Note that the time base timer uses the main clock regardless of the setting of the MCS
bit or SCS bit in the CKSCR register.
(3) Clock timer function
The clock timer provides functions including a clock source for the watchdog timer, a sub clock base oscillator
stabilization wait timer, and an interval timer to generate an interrupt at fix ed intervals . Note that the cloc k timer
uses the sub clock regardless of the setting of the MCS bit or SCS bit in the CKSCR register.
MB90420G/425G Series
38
•Block Diagram
TBTC
PONR
WRST
ERST
SRST
TBC0
TBR
TBIE
TBOF
TBC1
WT1
WT0
WTE
WTC
WDCS
SCE
WTC2
WTC0
WTR
WTIE
WTOF
WDTC
WDTC
AND
CLR OF CLR
211
213
216
218
TBTRES
28
29
210
211
212
213
214
216
WTRES
211 213 216 218
210 213 214 216
QR
S
AND QR
S
AND
QR
S
Main base oscillator
divided by 2
Selector Clock input
Time base timer
Time base
interrupt
Selector
Selector
2-bit
counter Watchdog reset
generator circuit To WDGRST
internal reset
generator circuit
F2MC-16LX bus
Power-on reset,
sub-clock stop
SGW
Clock timer
Clock input
Clock interrupt Sub base oscillator divided by 4
From power-on generator
RST pin
From RST bit in STBYC
register
MB90420G/425G Series
39
3. Input Capture
This circuit is composed of a 16-bit free-run timer and four 16-bit input capture circuits.
(1) Input capture ( ×
××
× 4)
The input capture circuits consist of four independent external input pins and corresponding capture registers
and control registers. When the specified edge of the e xternal signal input (at the input pin) is detected, the value
of the 16-bit free-run timer is saved in the capture register, and at the same time an interrupt can also be
generated.
• The valid edge (rising edge, falling edge, both edges) of the external signal can be selected.
• The four input capture circuits can operate independently.
• The interrupt can be generated from the valid edge of the external input signal.
(2) 16-bit free-run timer ( ×
××
× 1)
The 16-bit free-run timer is composed of a 16-bit up-counter, control register, 16-bit compare register, and
prescaler. The output values from this counter are used as the base time for the input capture circuits.
• The counter clock operation can be selected from 8 options. The eight internal clock settings are φ, φ/2, φ/4,
φ/8, φ/16, φ/32, φ/64, φ/128 where φ represents the machine clock cycle.
• Interrupts can be generated from overflow events, or from compare match events with the compare register.
(Compare match operation requires a mode setting.)
• The counter value can be initialized to “0000H” by a reset, soft clear, or a compare match with the compare
register.
(3) Block diagram
IVF IVFE STOP MODE SCLR CLK2 CLK1 CLK0
φ
MSI3 ∼ 0ICLR
EG11 EG10 EG01 EG00
ICRE
IN0/2
IN1/3
ICP0 ICP1 ICE0 ICE1
interrupt
#31 (1F
H)
Divider
Clock
16-bit free-run timer
F2MC-16LX bus
16-bit compare clear register Compare circuit Interrupt
#33 (21H)
A/D startup
Capture data register 0/2
Capture data register 1/3
Edge detection
Edge detection
Interrupt
#19, #23
Interrupt
#15, #21
MB90420G/425G Series
40
4. 16-bit Reload Timer
The 16-bit reload timer can either count down in synchronization with three types of internal clock signals in
internal clock mode, or count do wn at the detection of the designated edge of an external signal. The user ma y
select either function. This timer defines a transition from 0000H to FFFFH as an underflow event. Thus an
underflow occurs when counting from the value [Reload register setting + 1].
A selection of two counter operating modes are a vailab le. In reload mode, the counter is reset to the count v alue
and continues counting after an underflow, and in one-shot mode the count stops after an underflow . The counter
can generate an interrupt when an underflow occurs, and is compatible with the expanded intelligent I/O services
(EI2OS) .
(1) 16-bit Reload timer operating modes
(2) Internal clock mode
One of three input clocks is selected as the count clock, and can be used in one of the following operations.
• Soft trigger operation
When “1” is written to the TRG bit in the timer control status register (TMCSR0/1) , the count operation
starts.Trigger input at the TRG bit is nor mally valid with an exter nal trigger input, as well as an external gate
input.
• External trigger operation
Count operation starts when a selected edge (rising, falling, both edges) is input at the TIN0/1 pin.
• External gate input operation
Counting continues as long as the selected signal level (“L” or “H”) is input at the TIN0/1 pin.
(3) Event count mode (External clock mode)
In this mode a down count event occurs when a selected valid edge (r ising, falling, both edges) is input at the
TIN0/1 pin. This function can also be used as an interval timer when an e xternal clock with a fix ed period is used.
(4) Counter operation
• Reload mode
In down count operation, when an underflow event (transition from “0000H” to “FFFFH”) occurs, the set count
value is reloaded and count operation continues. The function can be used as an interval timer by generating
an interrupt request at each underflow event. Also, a toggle wavefor m that inverts at each underflow can be
output from the TOT0/1 pin.
φ : Machine clock cycle. Figures in ( ) are values at machine clock frequency 16 MHz.
Clock mode Counter mode 16-bit reload timer operation
Internal clock mode Reload mode Soft trigger operation
External trigger operation
External gate input operation
One-shot mode
Event count mode
(external clock mode) Reload mode Soft trigger operation
One-shot mode
Counter clock Counter clock period Interval time
Internal clock
21/φ (0.125 µs) 0.125 µs to 8.192 ms
23/φ (0.5 µs) 0.5 µs to 32.768 ms
25/φ (2.0 µs) 2.0 µs to 131.1 ms
External clock 23/φ or greater (0.5 µs) 0.5 µs or greater
MB90420G/425G Series
41
(5) One-shot mode
In down count oper ation, the count stops when an underflow event (transition from “0000H” to “FFFFH”) occurs.
This function can generate an interrupt at each underflow. While the counter is operating, a rectangular wave
form indicating that the count is in progress can be output form the TOT0 and TOT1 pins.
(6) Block diagram
UF
CLK
CLK
3
3 2
EN
CSL1 CSL0 OUTEOUTL RELD INTE UF CNTE TRG
WOD2WOD1WOD0
P12/TIN0 *1
<P07/TIN1>
TMRLR0 *1
<TMRLR1>
TMR0 *1
<TMR1>
P11/TOT0 *1
<P06/TOT1>
Internal data bus
16-bit reload register
Reload
control circuit
Reload signal
16-bit timer register (down counter)
Wait signal
Valid clock
decision circuit
Gate input
Prescaler
Machine
clock
To UART 0,1*1
<To A/D converter>
Pins
Output signal
generator
circuit
Inverted
Clock
selector
External clock
Input
control
circuit
Pins
Function selection
Select
signal
Operation
control
circuit
Interrupt
request signal
#17 (11h)*2
<#28 (1CH)>
Timer control status register (TNGSR0)*1
<TNGSR1>
*1: Channel 0 and channel 1. Figures in < > are for channel 1.
*2: Interrupt number
MB90420G/425G Series
42
5. Real Time Clock Timer
The real time clock timer is composed of a real time clock timer control register, sub second data register, second/
minute/hour data registers, 1/2 clock divider, 21-bit prescaler and second/minute/hour counters. Because the
MCU oscillation frequency operates on a giv en real time clock timer operation, a 4 MHz frequency is assumed.
The real time clock timer operates as a real world timer and provides real world time information.
•Block diagram
INTE0 INT0
EN
CI
EN
LOAD CO CO
OE
OE WOT
IRQ#30
CO
CO
INTE1
STUPDT
INT1 INTE2 INT2 INT3 INT3
Main oscillator clock 1/2 clock
divider 21-bit
prescaler
Sub second
register
Second
counter Minute
counter Hour
counter
6-bit 6-bit 5-bit
Second/minute/hour register
MB90420G/425G Series
43
6. PPG Timer
The PPG timer consists of a prescaler, one 16-bit down-counter, 16-bit data register with buffer f or period setting,
and 16-bit compare register with buffer for duty setting, plus pin control circuits.
The timer can output pulses synchronized with an e xternally input soft trigger . The period and duty of the output
pulse can be adjusted by rewriting the values in the two 16-bit registers.
(1) PWM function
Programmable to output a pulse, synchronized with a trigger.
Can also be used as a D/A converter with an external circuit.
(2) One-shot function
Detects the edge of a trigger input, and outputs a single pulse.
(3) Pin control
• Set to “1” at a duty match (priority) .
• Reset to “0” at a counter borrow event
• Has a fixed output mode to output a simple all “L” ( or “H”) signal.
• Polarity can be specified
(4) 16-bit down counter
• Select from f our types of counter operation cloc ks. F our internal clocks (φ, φ/4, φ/16, φ/64) φ : Machine clock
cycles.
• The counter value can be initialized to “FFFFH” at a reset or counter borrow event.
(5) Interrupt requests
• Timer startup
• Counter borrow event (period match)
• Duty match event
• Counter borrow event (period match) or duty match event
(6) Multiple channels can be set to start up at an external trigger, or to restart during operation.
MB90420G/425G Series
44
(7) Block diagram
1/1
1/4
1/16
1/32
CK
P05/SCK1/TRG
CMP
SQ
R
PCSR PDUT
Prescaler
Load
PSCT
16-bit down counter
Start Borrow
PPG mask
Machine clock PPG
output
Inversion bit
Enable
Trigger input Interrupt IRQ#25, 27, 29
Edge detection
Soft trigger
Interrupt
selection
MB90420G/425G Series
45
7. Delayed Interrupt Generator Module
The delayed interrupt generator module is a module that generates interrupts for task switching. This module
makes it possible to use software to generate/cancel interrupt requests to the F2MC-16LX CPU.
•Block diagram
F2MC-16LX bus
Delayed interrupt source generate/delete decoder
Source latch
MB90420G/425G Series
46
8. DTP/External Interrupt Circuit
The DTP (Data transf er peripheral) /e xternal interrupt circuit is located between an e xternally connected periph-
eral de vice and the F2MC-16LX CPU and sends interrupt requests or data transf er requests generated from the
peripheral de vice to the CPU, thereby generating e xternal interrupt requests or starting the expanded intelligent
I/O services (EI2OS) .
(1) DTP/external interrupt function
The DTP/e xternal interrupt function uses a signal input from the DTP/e xternal interrupt pin as a startup source.
And it is accepted by the CPU by the same procedure as a nor mal hardware interr upt, and can generate an
external interrupt or start the expanded intelligent I/O service (EI2OS) .
When the interrupt is accepted by the CPU, if the corresponding expanded intelligent I/O service (EI2OS) is
prohibited the interrupt operates as an exter nal interrupt function and branches to an interrupt routine. If the
EI2OS is permitted the interrupt functions as a DTP function, using EI2OS for automatic data transfer, then
branching to an interrupt routine after the completion of the specified number of data transfers.
ICR : Interrupt control register
External interrupt DTP function
Input pins 8 pins (P50/INT0/ADTG to P53/INT3, P00/SIN0/INT4 to P03/INT7)
Interrupt sources
Request level setting register (ELVR) sets the detection level, or selected edge for
each pin
“H” level/ “L” level/ rising edge/falling
edge input “H” level/ “L” level input
Interrupt numbers #16 (10H) , #18 (12H) , #20 (14H) , #22 (16H) , #24 (18H) , #26 (1AH)
Interrupt control DTP/interrupt enable register (ENIR) permits/prohibits interrupt request output
Interrupt flags DTP/interrupt enable register (EIRR) stores interrupt sources
Process selection When EI2OS prohibited (ICR : ISE = 0) When EI2OS is enabled (ICR : ISE = 1)
Processing Branch to external interrupt processing
routine
EI2OS performs automatic data transfer,
then after a specified number of cycles,
branches to an interrupt routine
MB90420G/425G Series
47
(2) Block diagram
LB7 LA7 LB6 LA6 LB5 LA5 LB4 LA4 LB3 LA3 LB2 LA2 LB1 LA1 LB0 LA0
P03/INT7
P02/INT6
P01/INT5
P00/INT4
ER7 ER6 ER5 ER4 ER3 ER2 ER1 ER0
EN7 EN6 EN5 EN4 EN3 EN2 EN1 EN0
P50/INT0
P51/INT1
P52/INT2
P53/INT3
#16 (10H)
#18 (12H)
#20 (14H)
#22 (16H)
#26 (1AH)
#24 (18H)
Request level setting register (ELVR)
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Selector Selector
Selector
Selector
Selector Selector
Selector
Selector
Interrupt request number
Internal data bus
MB90420G/425G Series
48
9. 8/10-bit A/D Converter
The 8/10-bit A/D converter has functions for using RC sequential comparator conversion format to convert analog
input v oltage into 10-bit or 8-bit digital values. The input signal is selected from 8-channel analog input pins, and
the conversion start can be selected from three types : by software, 16-bit reload timer 1 or a trigger input from
an external signal pin.
(1) 8/10-bit A/D converter functions
The A/D conv erter takes analog v oltage signals (input v oltage) input at analog input pins, and con v erts these to
digital values, providing the following features.
• Minimum conversion time is 6.13 µs (at machine clock frequency of 16 MHz, including sampling time) .
• Minimum sampling time is 3.75 µs (at machine clock 16 MHz)
• The conversion method is an RC sequential conversion in comparison with a sample hold circuit.
• Either 10-bit or 8-bit resolution can be selected.
• The analog input pin can select from 8 channels by a program setting.
• At completion of A/D conversion, an interrupt request can be generated, or EI2OS can be started.
• Because the conversion data protection function operates in an interrupt enabled state, no data is lost even
in continuous conversion.
• The conversion start source may be selected from : software, 16-bit reload timer 1 (rising edge) , or extern al
trigger input (falling edge) .
Three conversion modes are available
Conversion mode Single conversion operation Scan conversion operation
Single conversion mode Converts the specified channel (1 channel
only) one time, then stops.
Converts multiple consecutive channels (up
to 8 channels may be specified) one time,
then stops.
Continuous conversion
mode Converts the specified channel (1 channel
only) repeatedly. Converts multiple consecutive channels (up
to 8 channels may be specified) repeatedly.
Stop conversion mode Converts the specified channel (1 channel
only) one time, then pauses, waits until
the next start is applied.
Converts multiple consecutive channels (up
to 8 channels may be specified) , however
pauses after conversion of each channel,
waits until the next start is applied.
MB90420G/425G Series
49
(2) Block diagram
AVCC AVRH
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
MPX
ADCRH, L
ADCSH, L
P50/ADTG
φ
AVSS
D/A converter
Input circuit
Sequential comparator
register
Comparator
Sample & hold circuit
F2MC-16LX bus
A/D data register
Decoder
A/D control status register, high
A/D control status register, low
Timer start
16-bit reload timer 1 Trigger start Operating clock
Prescaler
MB90420G/425G Series
50
10. UART
The UART is a general purpose serial data communication interface for synchronous communication, or asyn-
chronous (start-stop synchronized) communication with external devices. Functions include normal bi-directional
functions, as well as master/slave type communication functions (multi-processor mode : master side only
supported) .
(1) UART Functions
The U ART is a general purpose serial data communication interface for sending and receiving of serial data with
other CPU’s or peripheral devices, and provides the following functions.
Note : The UART in clock synchronous transfer does not add start bits or stop bits, but transfers data only.
: Setting not available
*1 : “+” indicates an address/data selection bit (A/D) for communication control.
*2 : In receiving only one stop bit is detected.
Functions
Data buffer Full duplex double buffer
Transfer modes • Clock synchronous (no start/stop bits)
• Clock asynchronous (start-stop synchronized)
Baud rate • Exclusive baud rate generator provides a selection of 8 rates
• External clock input enabled
• Inter nal clock (can use internal clock feed from 16-bit reload timer)
Data length • 7-bit (asynchronous normal mode only)
•8-bit
Signal type NRZ (Non return to zero)
Receiving error detection • Framing errors
• Overrun errors
• Parity errors (not enabled in multiprocessor mode)
Interrupt request
• Receiving interrupt (receiving completed, receiving error detection)
• Sending interrupt (sending completed)
• Sending/receiving both compatible with expanded intelligent I/O services
(EI2OS)
Master/slave type
communication function
(multi-processor mode) 1 (master) -to-n (slave) communication enabled (only master side supported) .
Operating mode Data length Synchronization Stop bit length
No parity Parity
0 Normal mode 7-bit or 8-bit Asynchronous 1-bit or 2-bit *2
1 Multi-processor mode 8 + 1 *1Asynchronous
2Normal mode 8 Synchronous None
MB90420G/425G Series
51
(2) Block diagram
Control bus
Machine clock
16-bit
reload timer
P02/SCK0
<P05/SCK1>
Pins
MD1
MD0
CS2
CS1
CS0
SCKE
SOE
PEN
P
SBL
CL
A/D
REC
RXE
TXE
PE
ORE
FRE
RDRF
TDRE
BOS
RIE
TIE
SIDR0/1
P01/SOT0
<P04/SOT1>
#39 (27H) *
<#37 (25H) *>
#40 (28H) *
<#38 (26H) *>
P00/SIN0
<P03/SIN1>
SODR0/1
Clock
selector
Sending clock
Receiving
interrupt signals
Sending
interrupt signals
Receiving
clock Receiving
control
circuit
Sending
control
circuit
Start bit
detection circuit Sending start
circuit
Receiving bit
counter Sending bit
counter
Receiving parity
counter Sending parity
counter Pin
Pins Receiving
shift register Sending
shift register
Rece-
iving
end Sending start
Receiving status
judging circuit EI2OS receiving error
generator circuit (to CPU)
Internal data bus
SMR0/1
register SCR0/1
register SSR0/1
register
*: Interrupt number
Exclusive baud
rate generator
Communication
prescaler
Control register
(CDCR)
MB90420G/425G Series
52
11. CAN Controller
The CAN controller is a self-contained module within a 16-bit microcomputer (F2MC-16LX) . The CAN (controller
area network) controller is the standard protocol for ser ial transmissions among automotive controllers and is
widely used in the industry.
(1) CAN contr oller features
The CAN controller has the following features.
• Conforms to CAN specifications version 2.0 A and B.
Supports sending and receiving in standard frame and expanded frame format.
• Supports data frame sending by means of remote frame receiving.
• 16 sending/receiving message buffers
29-bit ID and 8-byte data
Multi-level message buffer configuration
• Supports full bit compare, full bit mask as well as partial bet mask filtering.
Provides two receiving mask registers for either standard frame or expanded frame format.
• Bit speed programmable from 10 KB/s to 1 MB/s (at machine clock 16 MHz)
• CAN WAKE UP function
• The MB90420G series has a two-channel built-in CAN controller . The MB90425G series has a 1-channel built-
in CAN controller.
MB90420G/425G Series
53
(2) Block diagram
BTR
PSC
PR
PH
RSJ
TOE
NS1,0
NT
NIE
HALT
RS
TS
CSR
RTEC
BVALR
TREQR
TCANR
TRTRR
RFWTR
TCR
TIER
RCR
RIER
RRTRR
ROVRR
AMSR
AMR0
AMR1
LEIR
IDR0 ~ 15,
DLCR0 ~ 15,
DTR0 ~ 15,
RAM
0
1
RBFX, TBFX, RDLC, TDLC, IDSEL
RBFX
IDSEL
TBFX
TBFX
PH1
RX
FRMER
ACKER
BITER
ARBLOST
STFERRDLC
CRCER
TDLC
TDLC RDLC IDSEL
ARBLOST TX
BITER, STFER,
CRCER, FRMER,
ACKER
SYNC, TSEG1, TSEG2
F2MC-16LX bus TQ (operating clock)
Machine
clock Prescaler 1-to-64
frequency divider Bit timing generator
Node status change
interrupt generator Node status
change interrupt
Bus
state
machine
IDLE, SUSPND,
TX, RX, ERR,
OVRLD
Error
control Send/receive
sequencer
TBFx
clear Send buffer
decision Data
counter Receiving
filter
control
Error
frame
generator
Overload
frame
generator
Output
driver
Send shift
register Stuffing
TBFx, set, clear CRC
generator ACK
generator
Sending completed
interrupt generator
Sending
completed
interrupt
RBFx, set CRC generator
error check
Receiving completed
interrupt generator Receiving
completed
interrupt
RBFx, TBFx, set clear Receiving
shift register Destuffing/
stuffing
error check
RBFx
set Arbitration
check
Bit error
check
Receiving
filter Receiving bufferx
decision Acknowledge error
check
Form error
check Input
latch
RAM address
generator
MB90420G/425G Series
54
12. LCD Controller/Driver
The LCD controller/driver has a b uilt-in 16 × 8-bit displa y data memory, and controls the LCD display b y means
of f our common outputs and 24 segment outputs. A selection of three duty outputs are a v ailab le. This b loc k can
drive an LCD (liquid crystal display) panel directly.
(1) LCD controller/driver functions
The LCD controller/driver pro vides functions for directly displa ying the contents of displa y data memory (display
RAM) on the LCD panel by means of segment output and common output.
• LCD drive voltage divider resistance is built-in. External divider resistance can also be connected.
• Up to 4 common outputs (COM0 to COM3) and 24 segment outputs (SEG0 to SEG23) can be used.
• 16-byte display data memory (display RAM) is built-in.
• The duty can be selected at 1/2, 1/3, 1/4 (limited by bias setting) .
• Drives the LCD directly.
: Recommended mode
× : Use prohibited
Note : When the SEG12 to SEG23 pins have been selected as general purpose ports by the LCRH setting, they
cannot be used for segment output.
Bias 1/2 duty 1/3 duty 1/4 duty
1/2 bias ×
×
1/3 bias ×
MB90420G/425G Series
55
(2) Block diagram
4
24
V0 V1 V2 V3
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
∼
LCDC control register Low
(LCRL) Divider resistance
Time base
timer output Prescaler Timing
controller Common
driver
Internal data bus
AC circuit
Display RAM,
16 × 8 bits
Segment
driver
LCDC control register High
(LCRH)
Controller Driver
MB90420G/425G Series
56
13. Low voltage/Program Looping Detection Reset Circuit
The Low voltage detection reset circuit is a function that monitors power supply voltage in order to detect when
a vo ltage drops below a given voltage level. When a low voltage condition is detected, an internal reset signal
is generated.
The Program Looping detection reset circuit is a count clock with a 20-bit counter that generates an internal
reset signal if not cleared within a given time after startup.
(1) Low voltage detection reset circuit
When a low voltage condition is detected, the low voltage detection flag (LVRC : LVRF) is set to “1” and an
internal reset signal is output.
Because the low voltage detection circuit continues to operate even in stop mode, detection of a low voltage
condition generates an internal reset and releases stop mode.
During an inter nal RAM write cycle, an internal reset is generated after the completion of writing. During the
output of this internal reset, the reset output from the low voltage detection circuit is suppressed.
(2) Program Looping detection reset circuit
The Program Looping detection reset circuit is a counter that prevents program looping. The counter starts
automatically after a power-on reset, and must be continually cleared within a given time. If the given time interval
elapses and the counter has not been cleared, a cause such as infinite program looping is assumed and an
internal reset signal is generated. The internal reset generated fo rm the Program Looping detection circuit has
a width of 5 machine cycles.
* : This value assumes an oscillation clock waveform of 4 MHz.
During recovery from standby mode the detection period is the maximum inter val plus 20 µs.
This circuit does not operate in modes where CPU operation is stopped.
The Program Looping detection reset circuit counter is cleared under any of the following conditions.
1. Writing “0” to the LVRC register CL bit
2. Internal reset
3. Main oscillation clock stop
4. Transition to sleep mode
5. Transition to time base timer mode or clock mode
Detection voltage
4.0 V ± 0.3 V
Interval duration
220/FC (Approx. 262 ms *)
MB90420G/425G Series
57
(3) Block diagram
−
+
VCC
VSS
Over flow
Reserved CL LVRF CPUF
Voltage comparator
circuit
Constant
voltage
source
Program Looping detection circuit
Main oscillation clock
Counter
Internal reset
Clear Noise canceller
Low voltage/CPU operation detection reset control register (LVRC)
Internal data bus
ReservedReservedReserved
Reserved
MB90420G/425G Series
58
14. Stepping Motor Controller
The stepping motor controller is composed of two PWM pulse generators, four motor drivers and selector logic
circuits.
The four motor drivers have a high output drive capacity and can be directly connected to the four ends of two
motor coils. They are designed to operate together with the PWM pulse generators and selector logic circuits
to control motor rotation. A synchronization mechanism assures synchronization of the two PWM pulse gener-
ators.
•Block diagram
P1 P0
SC
OE1
OE2
PWM1Pn
PWM2Pn
PWM1Mn
PWM2Mn
CE
CK
EN
CK
EN PWM
PWM
BS n : 0 ~ 3
Machine clock
Prescaler
Output enable
PWM1 pulse generator Selector
PWM1 compare register PWM1 selector register
PWM2 pulse generator
Output enable
Selector
Load
PWM2 compare register PWM2 select register
MB90420G/425G Series
59
15. Sound Generator
The sound generator is composed of a sound control register, frequency data register, amplitude data register,
decrement grade register, tone count register, PWM pulse generator, frequency counter, decrement counter,
and tone pulse counter.
•Block diagram
S1 S0
TONE OE2
INTE INT ST
1/d
DEC
OE1
CO
EN
PWM
CI
DEC
CI
CO
EN
CI
CO
EN
CO
EN D
EN Q
SGA
SGO
IRQ#34
OE1
OE2
Clock input
Prescaler 8-bit PWM
pulse generator Frequency
counter Toggle
flip-flop
ReloadReload
Amplitude data
register
Frequency data
register
Decrement
counter
Decrement grade
register Blend
Tone pulse
counter
Tone count
register
MB90420G/425G Series
60
16. Address Match Detect Function
If the address setting is the same as the address detection register, an INT9 instruction is executed. The integrated
address match detection function can be implemented by processing the INT9 interrupt service routine.
Two address registers are used, each with its own compare enable bit. When there is a match between the
address register and progra m counter, and the compare enable bit is set to “1” , the INT9 instruction is forcibly
executed by the CPU.
•Block diagram
Address latch
Compare
Address detection
register
Enable bit F2MC-16LX
CPU core
F2MC-16LX bus
MB90420G/425G Series
61
17. ROM Mirror Function Select Module
The ROM mirror function select module uses a select register setting to enable the contents of ROM allocated
to the FF bank to be viewed in the 00 bank.
•Block diagram
ROM
F2MC-16LX bus
ROM mirror function select register
Address area
FF bank 00 bank
MB90420G/425G Series
62
■ELECTRICAL CHARACTERISTICS
1. Absolute Maximum Ratings (VSS =
==
= AVSS =
==
= DVSS =
==
= 0 V)
*1 : AVCC, AVRH and DVCC shall never exceed VCC.
Also, AVRH shall never exceed AVCC.
*2 : Maximum output current is defined as the peak value of the current of any one of the corresponding pins.
*3 : Average output current is defined as the value of the average current flowing over 100 ms at any one of the
corresponding pins. The “average value” can be calculated from the formula of “operating current” times
“operating factor”.
*4 : Average total output current is defined as the value of the average current flowing over 100 ms at all of the
corresponding pins. The “average value” can be calculated from the formula of “operating current” times
“ operating factor”.
(Continued)
Parameter Symbol Rating Unit Remarks
Min Max
Power supply voltage
VCC VSS − 0.3 VSS + 6.0 V
AVCC VSS − 0.3 VSS + 6.0 V AVCC = VCC*1
AVRH VSS − 0.3 VSS + 6.0 V AVCC ≥ AVRH
DVCC VSS − 0.3 VSS + 6.0 V DVCC = VCC*1
Input voltage VIVSS − 0.3 VCC + 0.3 V
Output voltage VOVSS − 0.3 VCC + 0.3 V
Maximum clamp current ICLAMP − 400 + 400 µA*5
Total maximum clamp current Σ| ICLAMP |4mA*5
“L”level maximum
output current*2IOL1 15 mA Other than P70-P77, P80-P87
IOL2 40 mA P70-77, P80-87
“L”level average output
current*3IOLAV1 4 mA Other than P70-P77, P80-P87
IOLAV2 30 mA P70-77, P80-87
“L”level maximum
total output current ΣIOL1 100 mA Other than P70-P77, P80-P87
ΣIOL2 330 mA P70-77, P80-87
“L”level average total
output current ΣIOLAV1 50 mA Other than P70-P77, P80-P87
ΣIOLAV2 250 mA P70-77, P80-87
“H”level maximum
output current IOH1*2−15 mA Other than P70-P77, P80-P87
IOH2*2−40 mA P70-77, P80-87
“H”level average
output current IOHAV1*3−4 mA O ther than P70-P77, P80-P87
IOHAV2*3−30 mA P70-77, P80-87
“H”level maximum
total output current ΣIOH1 −100 mA Other than P70-P77, P80-P87
ΣIOH2 −330 mA P70-77, P80-87
“H”level average total
output current ΣIOHAV1*4−50 mA Other than P70-P77, P80-P87
ΣIOHAV2*4−250 mA P70-77, P80-87
Power consumption PD500 mW
Operating temperature TA−40 +105 °C
Storage temperature TSTG −55 +150 °C
MB90420G/425G Series
63
(Continued)
*5 : • Applicable to pins : P00 to P07, P10 to P15, P50 to P57, P70 to P77, P80 to P87
• Use within recommended operating conditions.
• Use at DC voltage (current) .
• The +B signal should always be applied with a limiting resistance placed between the +B signal and the
microcontroller.
• The value of the limiting resistance should be set so that when the +B signal is applied the input current to
the microcontroller pin does not exceed rated values, either instantaneously or for prolonged periods.
• Note that when the microcontroller drive current is low, such as in the power saving modes, the +B input
potential may pass through the protective diode and increase the potential at the VCC pin, and this may affect
other devices.
• Note that if a +B signal is input when the microcontroller current is off (not fixed at 0 V) , the power supply
is provided from the pins, so that incomplete operation may result.
• Note that if the +B input is applied during power-on, the power supply is provided from the pins and the
resulting supply voltage may not be sufficient to operate the power-on reset.
• Care must be taken not to leave the +B input pin open.
• Note that analog system input/output pins other than the A/D input pins (LCD drive pins, comparator input
pins, etc.) cannot accept +B signal input.
• Sample recommended circuits :
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
P-ch
N-ch
VCC
R
+B input (0 V to 16 V)
Limiting
resistance
Protective diode
• Input/Output equivalent circuits
MB90420G/425G Series
64
2. Recommended Operating Conditions (VSS = DVSS = AVSS = 0.0 V)
* : For smoothing capacitor Cs connections, see the illustration below.
WARNING: The recommended operating conditions are required in order to ensure the normal operation of the
semiconductor device. All of the device’s electrical characteristics are warranted when the device is
operated within these ranges.
Always use semiconductor devices within their recommended operating condition ranges. Operation
outside these ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented on
the data sheet. Users considering application outside the listed conditions are advised to contact their
FUJITSU representatives beforehand.
Parameter Symbol Value Unit Remarks
Min Max
Power supply
voltage
VCC
AVCC
DVCC
3.7 5.5 V
(MB90F428GA/GB, MB90F423GA/GB, MB90428GA/GB,
MB90427GA/GB, MB90423GA/GB)
Low voltage detection reset starts to work when power
supply voltage is 4.0 V ± 0.3 V.
3.0 5.5 V (MB90F428GC, MB90F423GC, MB90428GC,
MB90427GC, MB90423GC)
4.3 5.5 V Holding stop operation status
(MB90F428GA/GB, MB90F423GA/GB, MB90428GA/GB,
MB90427GA/GB, MB90423GA/GB)
3.0 5.5 V Holding stop operation status
(MB90F428GC, MB90F423GC, MB90428GC,
MB90427GC, MB90423GC)
Smoothing
capacitor* CS0.1 1.0 µFUse a ceramic capacitor or other capacitor of equivalent fre-
quency characteristics. A smoothing capacitor on the VCC
pin should have a capacitance greater than Cs.
Operating
temperature TA−40 +105 °C
C
CSVSS DVSS AVSS
• C pin connection
MB90420G/425G Series
65
3. DC Characteristics (VCC = 5.0 V±10%, VSS = DVSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
*1 : All input pins except X0, X0A, MD0, MD1, MD2 pins.
*2 : MD0, MD1, MD2 pins.
*3 : Supply current values assume external clock feed from the 1 pin and X1A pin. Users must be aware
that supply current levels differ depending on whether an external clock or oscillator is used.
(Continued)
Parameter Symbol Pin
name Conditions Value Unit Remarks
Min Typ Max
“H”level
input voltage VIHS 0.8 VCC VCC + 0.3 VCMOS hysteresis
Automotive level
input pin*1
VIHM VCC − 0.3 VCC + 0.3 V MD pin*2
“L”level
input voltage VILS VSS − 0.3 0.5 VCC VCMOS hysteresis
Automotive level
input pin*1
VILM VSS − 0.3 VSS + 0.3 V MD pin*2
Power supply
current*3
ICC
VCC
Operating frequency
FCP = 16 MHz,
normal operation
45 72 mA MB90F428GA/GB/GC
MB90F423GA/GB/GC
38 61 mA MB90428GA/GB/GC
MB90427GA/GB/GC
MB90423GA/GB/GC
ICCS Operating frequency
FCP = 16 MHz,
sleep mode
15 24 mA MB90F428GA/GB/GC
MB90F423GA/GB/GC
13 21 mA MB90428GA/GB/GC
MB90427GA/GB/GC
MB90423GA/GB/GC
ICTS
Operating frequency
FCP = 2 MHz,
time base timer mode 0.75 1.0 mA
ICCL Operating frequency
FCP = 8 kHz, TA = 25 °C,
subclock operation 0.35 0.7 mA
ICCLS Operating frequency
FCP = 8 kHz, TA = 25 °C,
sub sleep operation
40 100
µA
MB90F428GB
MB90F423GB
MB90428GB
MB90427GB
MB90423GB
10 30
MB90F428GC
MB90F423GC
MB90428GC
MB90427GC
MB90423GC
ICCT Operating frequency
FCP = 8 kHz, TA = 25 °C,
clock mode 40 100 µA
MB90F428GA/GB
MB90F423GA/GB
MB90428GA/GB
MB90427GA/GB
MB90423GA/GB
MB90420G/425G Series
66
(Continued)
(VCC = 5.0 V±10%, VSS = DVSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
*3:Current v alues are pro visional, and may be changed without prior notice for purposes of characteristic improve
ment, etc. Supply current values assume external clock f eed from the 1 pin and X1A pin. Users must be aware
that supply current levels differ depending on whether an external clock or oscillator is useed.
(Continued)
Parameter Sym
bol Pin name Conditions Value Unit Remarks
Min Typ Max
Power supply
current *3ICCH VCC TA = 25 °C,
stop mode
520µA
MB90F428G
MB90F423G
MB90428G
MB90427G
MB90423G
40 100 µA
MB90F428GA
MB90F423GA
MB90428GA
MB90427GA
MB90423GA
Input leakage
current IIL All input pins VCC = DVCC = AVCC = 5.5 V
VSS < VI < VCC −55µA
Input
capacitance 1 CIN1
Other than
Vcc, Vss,
DVcc, DVss,
Avcc, Avss, C,
P70 to P77,
P80 to P87
515pF
Input
capacitance 2 CIN2 P70 to P77,
P80 to P87 15 45 pF
Pull-up
resistance RUP RST, MD0,
MD1 25 50 100 kΩ
Pull-down
resistance RDOWN MD2 25 50 100 kΩ
Output H
voltage 1 VOH1 Other than
P70 to P77,
P80 to P87
VCC = 4.5 V
IOH = −4.0 mA VCC −
0.5 V
Output H
voltage 2 VOH2 P70 to P77,
P80 to P87 VCC = 4.5 V
IOH = −30.0 mA VCC −
0.5 V
Output L
voltage 1 VOL1 Other than
P70 to P77,
P80 to P87
VCC = 4.5 V
IOL = 4.0 mA 0.4 V
Output L
voltage 2 VOL2 P70 to P77,
P80 to P87 VCC = 4.5 V
IOL = 30.0 mA 0.55 V
MB90420G/425G Series
67
(Continued)
*4 : Defined as maximum variation in VOH2/VOL2 with all channel 0 PWM1P0/PWM1M0/PWM2P0/PWM2M0 simul-
taneously ON. Similarly for other channels.
Parameter Symbol Pin name Conditions Value Unit Remarks
Min Typ Max
Large current
output drive
capacity
variation 1
∆VOH2
PWM1Pn,
PWM1Mn,
PWM2Pn,
PWM2Mn,
n = 0 to 3
VCC = 4.5 V
IOH = 30.0 mA
VOH2 maximum variation 090 mV *4
Large current
output drive
capacity
variation 2
∆VOL2
PWM1Pn,
PWM1Mn,
PWM2Pn,
PWM2Mn,
n = 0 to 3
VCC = 4.5 V
IOH = 30.0 mA
VOL2 maximum variation 090 mV *4
LCD divider
resistance RLCD V0 to V1,
V1 to V2,
V2 to V3 50 100 200 kΩ
COM0 to
COM3
output imped-
ance
RVCOM COMn
(n = 0 to 3) 2.5 kΩ
SEG0 to
SEG3
output imped-
ance
RVSEG SEGn
(n = 00 to 23) 15 kΩ
LCD leakage
current ILCDC
V0 to V3
COMm
(m = 00 to 23)
SEGn
(n = 00 to 23)
−5.0 +5.0 µA
MB90420G/425G Series
68
4. AC Characteristics
(1) Clock timing (VCC =
==
= 5.0 V±10%, VSS =
==
= DVSS =
==
= AVSS =
==
= 0.0 V, TA =
==
= −40 °
°°
°C to +105 °
°°
°C)
*: The frequency variability ratio is the maximum proportion of variation from the set central frequency using a
multiplier in locked operation.
Parameter Symbol Pin name Condi-
tions Value Unit Remarks
Min Typ Max
Base oscillation
clock frequency FCX0, X1
4MHz
FLC X0A, X1A 32.768 kHz
Base oscillation
clock cycle time tCYL X0, X1 250 ns
tLCYL X0A, X1A 30.5 µs
Input clock pulse
width PWH, PWL X0 10 ns Use duty ratio of
40 to 60% as a guideline
PWLH, PWLL X0A 15.2 µs
Input clock
rise, fall time tcr, tcf X0, X0A 5ns
With external
clock signal
Input operating
clock frequency FCP 216 MHz Using main clock,
PLL clock
FLCP 8.192 kHz Using sub clock
Input operating
clock cycle time tCP 62.5 — 500 ns Using main clock,
PLL clock
tLCP 122.1 µs Using sub clock
Frequency variability
ratio* (locked) ∆f5%
+
+α
α fo
fo −α
−
∆f = × 100 (%) Central
frequency
• X0 clock timing
• X0A clock timing
X0
tcf tcr
0.8 VCC
0.2 VCC
PWL
tCYL
PWH
X0A
tLCYL
tcf tcr
0.8 VCC
0.2 VCC
PWLH PWLL
MB90420G/425G Series
69
• Range of warranted operation
The MB90F428GA/GB, MB90F423GA/GB, MB90428GA/GB, MB90427GA/GB, and MB90423GA/GB
enter reset mode at supply voltage below 4 V ± 0.3 V.
• Sample oscillator circuit
Oscillator element
manufacturer Oscillator Frequency C1 C2
Murata Manufacturing Co., Ltd. CSTCR4M00G15 ( ) A-R0 4 MHz 39 [pF] (Typ) 39 [pF] (Typ)
161282
5.5
3.7
3.3
3.0
Relation between internal operating clock frequency and supply voltage
MB90F428GA/GB, MB90F423GA/GB, MB90428GA/GB,
MB90427GA/GB, MB90423GA/GB
range of warranted operation
Supply voltage VCC (V)
PLL range of
warranted operation
MB90F428GC, MB90F423GC, MB90428GC,
MB90427GC, MB90423GC
range of warranted operation
Internal clock frequency fCP (MHz)
4.5
MB90V420G
range of warranted
operation
Relation between oscillator clock frequency and internal operating clock frequency
Internal operating clock frequency
Main clock PLL clock
Multiplier
×
××
× 1 Multiplier
×
××
× 2 Multiplier
×
××
× 3 Multiplier
×
××
× 4
Oscillation clock
frequency 4 MHz 2 MHz 8 MHz 12 MHz 16 MHz
X0 X1
C2
C1
CERALOCK
MB90F428A
MB90420G/425G Series
70
AC ratings are defined for the following measurement reference voltage values:
0.8 VCC
0.5 VCC
2.4 V
0.8 V
• Input signal waveform
Hysteresis input pin
• Output signal waveform
Output pin
MB90420G/425G Series
71
(2) Reset input (VCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
*: Oscillator oscillation time is the time to reach 90% amplitude. For a crystal oscillator, this is a few to several
hundred ms; f or a FAR/ceramic oscillator, this is several hundred ms to a f ew ms, and f o r an external clock this
is 100 µs.
Parameter Symbol Pin name Conditions Value Unit Remarks
Min Max
Reset input time tRSTL RST
16 tCP ns In normal operation
Oscillator oscillation
time* + 16 tCP ms
In stop mode,
sub clock mode,
sub sleep mode,
watch mode
RST
0.5 VCC
tRSTL
0.5 VCC
• Under normal operation
RST
X0
16 tcp
tRSTL
0.5 Vcc 0.5 Vcc
Internal
operation
clock
Internal
reset
90 % of
amplitude
Oscillator
oscillation time
Oscillator stabilization wait time
Execution of the instruction
• In stop mode, sub cloc k mode, sub sleep mode , watch mode
MB90420G/425G Series
72
(3) Power-on reset, power on conditions (VSS = 0.0 V, TA = −40 °C to +105 °C)
Parameter Symbol Pin
name Conditions Value Unit Remarks
Min Max
Power supply rise time tR
VCC
0.05 30 ms
Power supply start voltage VOFF 0.2 V
Power supply attained voltage VON 2.7 V
Power supply cutoff time tOFF 50 ms For repeat operation
VCC
0 V
VCC
VSS
5.0 V
tR
tOFF
2.7 V
0.2 V 0.2 V0.2 V
Extreme variations in voltage supply may activate a power-on reset.
As the illustration below shows, when varying supply voltage during operation the use of a smooth
voltage rise with suppressed fluctuation is recommended. Also in this situation, the PLL clock on the
device should not be used, however it is permissible to use the PLL clock during a voltage drop of
1V/s or less.
3.0 V
RAM data hold
A rise slope of 50 mV or
less is recommended
MB90420G/425G Series
73
(4) UART0, UART1 timing (VCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Notes : • AC ratings are for CLK synchronous mode.
• CL is load capacitance connected to pin during testing.
Parameter Symbol Pin name Conditions Value Unit Remarks
Min Max
Serial clock cycle time tSCYC SCK0, SCK1
8 tCP ns Internal shift
clock mode
output pin CL =
80 pF + 1•TTL
SCK fall to SOT delay time tSLOV SCK0, SCK1
SOT0, SOT1 −80 80 ns
Valid SIN to SCK rise tIVSH SCK0, SCK1
SIN0, SIN1 100 ns
SCK rise to valid SIN hold time tSHIX 60 ns
Serial clock “H” pulse width tSHSL SCK0, SCK1
4 tCP ns
External shift
clock mode
output pin CL =
80 pF + 1•TTL
Serial clock “L” pulse width tSLSH 4 tCP ns
SCK fall to SOT delay time tSLOV SCK0, SCK1
SOT0, SOT1 150 ns
Valid SIN to SCK rise tIVSH SCK0, SCK1
SIN0, SIN1 60 ns
SCK rise to valid SIN hold time tSHIX 60 ns
• Internal shift clock mode
• External shift clock mode
SCK
SOT
SIN
tSCYC
tSLOV
tIVSH tSHIX
0.8 V 0.8 V
2.4 V
2.4 V
0.8 V
0.8 VCC
0.5 VCC
0.8 VCC
0.5 VCC
SCK
SOT
SIN
tSLSH tSHSL
tSLOV
tIVSH tSHIX
0.5 VCC 0.5 VCC
0.8 VCC 0.8 VCC
2.4 V
0.8 V
0.8 VCC
0.5 VCC
0.8 VCC
0.5 VCC
MB90420G/425G Series
74
(5) Timer input timing (VCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
(6) Trigger input timing (VCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Parameter Symbol Pin name Conditions Value Unit Remarks
Min Max
Input pulse width tTIWH
tTIWL
TIN0, TIN1,
IN0, IN1,
IN2, IN3, 4 tCP ns
Parameter Symbol Pin name Conditions Value Unit Remarks
Min Max
Input pulse width tTRGH,
tTRGL INT0 to INT7 5 tCP ns Under normal operation
1µs In stop mode
TIN0 ∼ TIN1
IN0 ∼ IN3
0.8 VCC 0.8 VCC
0.5 VCC 0.5 VCC
tTIWH tTIWL
• Timer input timing
INT0 ∼ INT7 0.8 VCC 0.8 VCC
0.5 VCC 0.5 VCC
tTRGH tTRGL
• Trigger input timing
MB90420G/425G Series
75
(7) Low voltage detection (VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Parameter Symbol Pin name Conditions Value Unit Remarks
Min Typ Max
Detection voltage VDL VCC 3.7 4.0 4.3 V During voltage
drop
Hysteresis width VHYS VCC 0.1 VDuring voltage
rise
Power supply voltage
fluctuation ratio dV/dt VCC −0.1 0.02 V/µs
Detection delay time td35 µs
VHYS
dV
dt
Vni
td
VCC
td
Internal reset
MB90420G/425G Series
76
5. A/D Conversion Block
(1) Electrical Characteristics (VCC = AVCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
*1 : At FCP = 16 MHz, tSMP = 32 × tCP = 2.000 (µs) .
*2 : At FCP = 16 MHz, tCMP = 66 × tCP = 4.125 (µs) .
*3 : Equivalent to con version time per channel at FCP = 16 MHz, and selection of tSMP = 32 × tCP and tCMP = 32 × tCP.
*4 : Defined as supply current (when VCC = AVCC = AVRH = 5.0 V) with A/D converter not operating, and CPU in
stop mode.
Notes : •The relative error increases as AVRH is reduced.
•The output impedance (rs) on the external analog input circuit should be used as follows.
External circuit output impedance rs = 5 kΩ max.
•If the output impedance on the external circuit is too great, the analog voltage sampling time may be
insufficient.
•If DC inhibitor capacitance is placed between the external circuit and input pin, then a capacitance va lue
several thousand times the value of the chip internal sampling capacitance (CSH) should be selected in
order to suppress the effects of voltage division with CSH.
Parameter Symbol Pin name Value Unit Remarks
Min Typ Max
Resolution 10 bit
Total error ±5.0 LSB
Non-linear error ±2.5 LSB
Differential linear error ±1.9 LSB
Zero transition voltage VOT AN0 to AN7 AVSS
− 3.5 LSB AVSS
+ 0.5 LSB AVSS
+ 4.5 LSB V1 LSB =
(AVRH − AVSS)
/ 1024
Full scale transition
voltage VFST AN0 to AN7 AVRH
− 6.5 LSB AVRH
− 1.5 LSB AVRH
+ 1.5 LSB V
Sampling time tSMP 2.000 µs*1
Compare time tCMP 4.125 µs*2
A/D conversion time tCNV 6.125 µs*3
Analog port
input current IAIN AN0 to AN7 10 µAVAVSS = VAIN = VAVCC
Analog input current VAIN AN0 to AN7 0 AVRH V
Reference voltage AVR+AVRH 3.0 AVCC V
Power supply current IAAVCC 2.3 6.0 mA
IAH 5µA*4
Reference voltage feed
current IRAVRH 200 400 600 µAVAVRH = 5.0 V
IRH AVRH 5µA*4
Inter-channel variation — AN0 to AN7 4LSB
MB90420G/425G Series
77
rS
VS
RSH CSH
Microcontroller internal circuits
Input pin AN0
Comparator
Input pin AN7 S/H circuit
External circuits Analog channel selector
• Analog input equivalent circuit
<Recommended and guide values for element parameters>
rs = 5 kΩ or less
RSH = approx. 3 kΩ
CSH = approx. 25 pF
Note : These element parameters are intended as guidelines f or ref erence, and are not warr anted for
actual use.
MB90420G/425G Series
78
(2) Definition of terms
• Resolution
Indicates the ability of the A/D converter to discriminate in analog conversion.
10-bit resolution indicates that analog voltage can be resolved into 210 = 1024 levels.
• Total error
Expresses the difference between actual and logical values. It is the total value of errors that can come from
offset error, gain error, non-linearity error and noise.
• Linearity error
Expresses the de viation between actual con v ersion characteristics and a straight line connecting the de vice’s
zero transition point (00 0000 0000 ←→ 00 0000 0001) and full scale transition point (11 1111 1110 ←→ 11
1111 1111) .
• Differential linearity error
Expresses the deviation of the logical value of input voltage required to create a variation of 1 SLB in output
code.
11 1111 1111
11 1111 1110
11 1111 1101
11 1111 1100
00 0000 0011
00 0000 0010
00 0000 0001
00 0000 0000
.
.
.
.
.
.
.
.
.
.
.
.
.
1 LSB × N + VOT
VOT VNT VFSTV(N + 1)T
Digital output
Linearity error
Analog input
1 LSB =
Linearity error =
Differential linearity error =
VFST − VOT
1022
[LSB]
[LSB]
VNT − (1 LSB × N + VOT)
1 LSB
1 LSB
V (N + 1) T − VNT − 1
• 10-bit A/D converter conversion characteristics
MB90420G/425G Series
79
6. Flash Memory Program and Erase Performances
Parameter Conditions Value Unit Remarks
Min Typ Max
Sector erase time
TA = + 25 °C
VCC = 5.0 V
1 15 s Excludes 00H programming prior erasure
Chip erase time 5s Excludes 00H programming prior erasure
Word (16 bit width)
programming time 16 3,600 µs Excludes system-level overhead
Erase/Program cycle 10,000 cycle
MB90420G/425G Series
80
■EXAMPLE CHARACTERISTICS
(Continued)
40
35
30
25
20
15
10
5
03.5 4.5 5.5
VCC (V)
ICC (mA)
6.5
FC = 16 MHz
FC = 11 MHz
FC = 8 MHz
FC = 5 MHz
FC = 4 MHz
FC = 2 MHz
900
800
700
600
500
400
300
200
100
03.5 4.5 5.5 6.5
VCC (V)
ICTS (µA)
FC = 16 MHz
FC = 11 MHz
FC = 8 MHz
FC = 5 MHz
FC = 4 MHz
FC = 2 MHz
ICC − VCC (TA = +25 °C)
ICTS − VCC (TA = +25 °C)
500
400
300
200
100
03.5 4.5 5.5 6.5
VCC (V)
ICCL (µA)
TA = 125 °C
TA = −40 °C
TA = 25 °C
ICCL − VCC (FC = 8 kHz)
MB90420G/425G Series
81
(Continued)
70
60
50
40
30
20
10
03.5 4.5 5.5 6.5
VCC (V)
ICCLS (µA)
TA = 25 °C
TA = −40 °C
TA = 125 °C
70
60
50
40
30
20
10
03.5 4.5 5.5 6.5
VCC (V)
ICCT (µA)
TA = 25 °C
TA = −40 °C
TA = 125 °C
ICCLS − VCC (FC = 8 kHz)
ICCT − VCC (FC = 8 kHz)
MB90420G/425G Series
82
■ORDERING INFORMATION
Part number Package Remarks
MB90F423GAPF
MB90F423GBPF
MB90F423GCPF
MB90F428GAPF
MB90F428GBPF
MB90F428GBPF
MB90F428GCPF
MB90423GAPF
MB90423GBPF
MB90423GCPF
MB90427GAPF
MB90427GBPF
MB90427GCPF
MB90428GAPF
MB90428GBPF
MB90428GCPF
Plastic QFP, 100-pin
(FPT-100P-M06)
MB90F423GAPFV
MB90F423GBPFV
MB90F423GCPFV
MB90F428GAPFV
MB90F428GBPFV
MB90F428GCPFV
MB90423GAPFV
MB90423GBPFV
MB90423GCPFV
MB90427GAPFV
MB90427GBPFV
MB90427GCPFV
MB90428GAPFV
MB90428GBPFV
MB90428GCPFV
Plastic LQFP, 100-pin
(FPT-100P-M05)
MB90420G/425G Series
83
■PACKAGE DIMENSIONS
(Continued)
Plastic QFP, 100-pin
(FPT-100P-M06)
Dimensions in mm (inches)
C
2001 FUJITSU LIMITED F100008S-c-4-4
1 30
31
50
5180
81
100
20.00±0.20(.787±.008)
23.90±0.40(.941±.016)
14.00±0.20
(.551±.008)
17.90±0.40
(.705±.016)
INDEX
0.65(.026) 0.32±0.05
(.013±.002) M
0.13(.005)
"A"
0.17±0.06
(.007±.002)
0.10(.004)
Details of "A" part
0~8°
(.035±.006)
0.88±0.15
(.031±.008)
0.80±0.20
0.25(.010)
3.00 +0.35
–0.20
+.014
–.008
.118
(Mounting height)
0.25±0.20
(.010±.008)
(Stand off)
MB90420G/425G Series
84
(Continued)
Plastic LQFP, 100-pin
(FPT-100P-M05)
Dimensions in mm (inches)
C
2000 FUJITSU LIMITED F100007S-3c-5
14.00±0.10(.551±.004)SQ
16.00±0.20(.630±.008)SQ
125
26
51
76 50
75
100
0.50(.020) 0.20±0.05
(.008±.002) M
0.08(.003) 0.145±0.055
(.0057±.0022)
0.08(.003)
"A"
INDEX .059 –.004
+.008
–0.10
+0.20
1.50
(Mounting height)
0°~8°
0.50±0.20
(.020±.008)
0.60±0.15
(.024±.006)
0.25(.010)
0.10±0.10
(.004±.004)
Details of "A" part
(Stand off)
MB90420G/425G Series
FUJITSU LIMITED
All Rights Reserved.
The contents of this document are subject to change without notice.
Customers are advised to consult with FUJITSU sales
representatives before ordering.
The information and circuit diagrams in this document are
presented as examples of semiconductor device applications, and
are not intended to be incorporated in devices for actual use. Also,
FUJITSU is unable to assume responsibility for infringement of
any patent rights or other rights of third parties arising from the use
of this information or circuit diagrams.
The products described in this document are designed, developed
and manufactured as contemplated for general use, including
without limitation, ordinary industrial use, general office use,
personal use, and household use, but are not designed, developed
and manufactured as contemplated (1) for use accompanying fatal
risks or dangers that, unless extremely high safety is secured, could
have a serious effect to the public, and could lead directly to death,
personal injury, severe physical damage or other loss (i.e., nuclear
reaction control in nuclear facility, aircraft flight control, air traffic
control, mass transport control, medical life support system, missile
launch control in weapon system), or (2) for use requiring
extremely high reliability (i.e., submersible repeater and artificial
satellite).
Please note that Fujitsu will not be liable against you and/or any
third party for any claims or damages arising in connection with
above-mentioned uses of the products.
Any semiconductor devices have an inherent chance of failure. You
must protect against injury, damage or loss from such failures by
incorporating safety design measures into your facility and
equipment such as redundancy, fire protection, and prevention of
over-current levels and other abnormal operating conditions.
If any products described in this document represent goods or
technologies subject to certain restrictions on export under the
Foreign Exchange and Foreign Trade Law of Japan, the prior
authorization by Japanese government will be required for export
of those products from Japan.
F0202
FUJITSU LIMITED Printed in Japan
