PS018906-0908
DO NOT USE IN LIFE SUPPORT
LIFE SUPPORT POLICY
ZILOG'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE
SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF
THE PRESIDENT AND GENERAL COUNSEL OF ZILOG CORPORATION.
As used herein
Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b)
support or sustain life and whose failure to perform when properly used in accordance with instructions for
use provided in the labeling can be reasonably expected to result in a significant injury to the user. A
critical component is any component in a life support device or system whose failure to perform can be
reasonably expected to cause the failure of the life support device or system or to affect its safety or
effectiveness.
Document Disclaimer
©2008 by Zilog, Inc. All rights reserved. Information in this publication concerning the devices,
applications, or technology described is intended to suggest possible uses and may be superseded. ZILOG,
INC. DOES NOT ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY
OF THE INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT.
ZILOG ALSO DOES NOT ASSUME LIABILITY FOR INTELLECTUAL PROPERTY
INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR
TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. The information contained within this
document has been verified according to the general principles of electrical and mechanical engineering.
eZ80 and eZ80Acclaim! are registered trademarks of Zilog, Inc. All other product or service names are the
property of their respective owners.
Warning:
PS018906-0908 Revision History
eZ80F92 Flash Module
Product Specification
iii
Revision History
Each instance in Revision History reflects a change to this document from its previous
revision. For more details, refer to the corresponding pages and appropriate links in the
table below.
Date
Revision
Level Description
Page
Number
September 2008 06 Removed Preliminary. Updated as per
latest template and style guide
changes.
All
December 2003 05 Fixed incorrect conditional indicators. All
August 2003 04 Modified to remove
zservice@zilog.com and other external
hyperlinks to documentation.
All
February 2003 03 Fixed incorrect hyperlinks. All
January 2003 02 Modified references for eZ80Acclaim!®.All
PS018906-0908 Table of Contents
eZ80F92 Flash Module
Product Specification
iv
Table of Contents
Architectural Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
eZ80F92 Flash Module Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
eZ80F92 Flash Module Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
eZ80F92 Controller Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Peripheral Bus Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Onboard Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Logic-Level I/Os . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Onboard Battery Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Wait States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Static RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Flash Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
IrDA Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Reset Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Serial Interface Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mounting the Module onto the eZ80® Development Platform . . . . . . . . . . . . . . 18
ESD/EMI Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
PS018906-0908 Architectural Overview
eZ80F92 Flash Module
Product Specification
1
Architectural Overview
Zilog’s eZ80F92 Flash Module is a low-cost, general-purpose compact module. It is spe-
cially designed for the rapid development and deployment of embedded systems. This
expandable module is powered by Zilog’s latest power-efficient, high-speed, optimized
pipeline architecture eZ80F92 Microcontroller Unit (MCU). This MCU, the first device in
Zilog’s eZ80Acclaim!® product line, features 128 KB of on-chip Flash memory and 8 KB
of on-chip SRAM.
The eZ80F92 MCU is a high-speed, single-cycle instruction-fetch MCU, which can oper-
ate with a clock speed of 20 MHz. It can operate in Z80®-compatible addressing mode
(64 KB) or full 24-bit addressing mode (16 MB).
The rich peripheral set of the eZ80F92 Flash Module makes it suitable for a variety of
applications, including industrial control, IrDA connectivity, communication, security,
automation, point-of-sale (POS) terminals.
The eZ80F92 Flash Module incorporates the eZ80F92 MCU. The eZ80F92 can be
replaced with the eZ80F93 MCU, which features 64 KB of internal Flash memory and
4 KB of internal SRAM.
eZ80F92 Flash Module Features
The key features of eZ80F92 Flash Module include:
•
eZ80Acclaim! Flash MCU with factory-default operating clock frequency at 20 MHz
•
512 KB zero-wait-state onboard SRAM
•
128 KB on-chip Flash memory
•
GoldCap backup for Real-Time Clock (RTC)
•
Input/Output (I/O) connector provides 24 general-purpose 5 V-tolerant I/O pinouts
•
Zilog’s industry-leading IrDA transceiver—Zilog’s ZHX1810
•
I/O circuit Flash programming circuitry
•
Onboard connector provides I2C 2-wire SDA/SCL interface
•
Onboard connector provides I/O bus for external peripheral connections (IRQ, CS,
24 address, 8 data)
•
Low-cost adaptation to carrier board via two 2 x 25 pin (2.54 mm) headers
•
Horizontal or vertical mounting onto the eZ80® Development Platform
•
Small footprint 64 x 64 mm
•
3.3 V power supply
•
Standard operating temperature range: 0 ºC to +70 ºC
Note:
PS018906-0908 Architectural Overview
eZ80F92 Flash Module
Product Specification
2
eZ80F92 Flash Module Bill of Materials
Table 1 lists the installed components of the eZ80F92 Flash Module.
Table 1. Bill of Materials for the eZ80F92 Flash Module
Part Number Part Name Qty.
Jumper
Location Manufacturer
98C0873-001 FAB, eZ80F92/93 MODULE, Rev. A 1 — Prime Technologies
35-0180-12 IC, SRAM, 512K x 8, 12 ns, 3 V, 36-SOJ 1 U1 Alliance Semi.
AS7C34096-12JC
35-0016-05 IC, 74LVC04, 3.3 V, GATE, 14-SOIC 1 U2 Texas Instruments
SN74LVC04AD
35-0719-00 IC, MAX6328, RESET, SOT-23 1 U4 Maxim Inc.
MAX6328UR29-T
ZHX1810 IC, IR Transceiver, low profile 1 U5 Zilog Inc.
ZHX1810MV115THTR
35-0062-01 IC, 74LCX32, LV, QUAD,
or 14-TSSOP
1 U6 Fairchild Semi.
74LCX32MTC
EZ80F92 IC, eZ80F92AZ020SC, 20 MHZ, 100 V QFP 1 U8 Zilog Inc.
EZ80F92AZ020SC
48-1013-01 DIODE, TVS ARRAY, XCVR PROT,
8-SOIC
1U9Semtec
LCDA15C-6
17-2005-70 CAP, 1, 000 pF, 50 V, ceramic chip, 0603 5 C3, C5,
C21–23
Panasonic
ECJ-1VC1H102J
17-2005-66 CAP, 0.1 µF, 16 V, ceramic chip, 0603 9 C4, C6–9,
C13–15,
C18
Kemet Inc.
C0603C104K5RAC
17-2005-54 CAP, 0.01 µF, 50 V, ceramic chip, 0603 1 C10 Panasonic
ECJ-1VB1C103K
17-2005-83 CAP, 0.33 µF, 16 V, ceramic chip, 0603 1 C11 Panasonic
ECJ-1VF1C334Z
17-2005-39 CAP, 560 pF, 50 V, ceramic chip, 0603 1 C12 Panasonic
ECJ-1VC1H561J
17-2001-03 CAP, 12 pF, 50 V, ceramic chip, 0603 4 C16, C17,
C20, C24
Panasonic
ECJ-1VC1H120J
15-0100-01 CAP, 1.10 F, 5.5 V, GOLD, SD, COIN 1 C19 Panasonic
EEC-SOHD104V
48-0030-04 Diode, Schottky, Power rectifier, SMT 1 D1 On Semiconductor
MBR0520LT1
PS018906-0908 Architectural Overview
eZ80F92 Flash Module
Product Specification
3
46-3001-03 Resistor, 10 kΩ, 1%, 1/16 W, 0603 SMT 9 R1, 11, 12,
17, 19, 29,
30, 34, 36
Sprague
420CK472X2PD
46-3000-00 Resistor, 0 Ω, 1%, 1/16 W, 0603 SMT 2 R2, C25 "
46-3000-71 Resistor, 2.21 kΩ, 1%, 1/16W, 0603 SMT 3 R3, R10,
R33
"
46-3000-35 Resistor, 68
Ω, 1%, 1/16 W, 0603 SMT 1 R5 "
46-1005-03 Resistor, 2.7 Ω, 5%, 1/4 W, 1206 SMT 1 R6 "
46-3001-03 Resistor, 4.75 kΩ, 1%, 1/16 W, 0603 SMT 4 R7, 8,
13, 22
"
46-3000-27 Resistor, 33.2 Ω, 1%, 1/16 W, 0603 SMT 1 R9 "
46-3000-39 Resistor, 100
Ω, 1%, 1/16 W, 0603 SMT 5 R20, 21,
26, 28, 32
"
46-3000-80 Resistor, 4.99 kΩ, 1%, 1/16 W, 0603 SMT 1 R23 "
46-3000-07 Resistor, 8.2 Ω, 1%, 1/16 W, 0603 SMT 2 R24, R25 "
46-3001-51 Resistor, 1M Ω, 1%, 1/16 W, 0603 SMT 1 R27 "
23-0000-10 Internal crystal, 20.0000 MHz,
SER/RESN, HC-49S
2 Y1, Y2 Fox Series
HC-49S 20.0000 MHz
23-0006-00 Internal crystal, 32.768 kHz,
SER/RESN, TF CASE
1 Y3 NDK MX-38
21-0055-02 Connector, HDR/PIN,. 025SQ, double row 2 JP1, JP2 "
Table 1. Bill of Materials for the eZ80F92 Flash Module (Continued)
Part Number Part Name Qty.
Jumper
Location Manufacturer
PS018906-0908 Architectural Overview
eZ80F92 Flash Module
Product Specification
4
eZ80F92 Controller Features
The key features of eZ80F92 include:
•
The eZ80F92 device contains 128 KB of Flash memory and 8 KB of SRAM
•
Single-cycle instruction fetch, high-performance, and pipelined eZ80® CPU core
•
Low power features including SLEEP mode, HALT mode, and selective peripheral
power-down control
•
Two Universal Asynchronous Receiver/Transceivers (UARTs) with independent baud
rate generators and support for 9-bit operation
•
Serial Peripheral Interface (SPI) with independent clock rate generator
•
I2C with independent clock rate generator
•
Infrared Data Association (IrDA)-compliant infrared encoder/decoder
•
New Direct Memory Access (DMA)-like eZ80 CPU instructions for efficient block
data transfer
•
Glueless external memory interface with four chip selects, individual wait state gener-
ators, and an external WAIT input pin—supports Intel- and Motorola-style buses
•
Fixed-priority vectored interrupts (both internal and external) and interrupt controller
•
RTC with an on-chip 32 kHz oscillator, selectable 50/60 Hz input, and separate VDD
pin for battery backup
•
Six 16-bit Counter/Timers with prescalers and direct input/output drive
•
Watchdog Timer (WDT)
•
24 bits of general-purpose input/output (GPIO)
•
JTAG and ZDI debug interfaces
•
100-pin LQFP package
•
3.0 V to 3.6 V supply voltage with 5 V tolerant inputs
•
Standard operating temperature range: 0 ºC to +70 ºC
All signals with an overline are active Low. For example, B/W, for which WORD is active
Low, and B/W, for which BYTE is active Low.
Note:
PS018906-0908 Architectural Overview
eZ80F92 Flash Module
Product Specification
5
Block Diagram
Figure 1 displays a block diagram of the eZ80F92 Flash Module.
Figure 1. eZ80F92 Flash Module Functional Block Diagram
Gold Cap 32 kHz XTAL
XTAL/Osc
eZ80 CPUReal-Time Clock
Bus
Controller
IrDA
Transceiver
PD
PC
PB
Watchdog
Timer
I C
Power-On
Reset
ZDI/JTAG
UART
SPI
6 Timer
512 KB
SRAM
UART
50-Pin Connector
24-Bit
GPIO
8 KB
SRAM
128 KB
Flash
2
50-Pin Connector
PS018906-0908 Pin Description
eZ80F92 Flash Module
Product Specification
6
Pin Description
Peripheral Bus Connector
Figure 2 displays the pin layout of the eZ80F92 Flash Module’s I/O Connector (JP1) in the
50-pin package. Table 2 on page 7 lists the pins and their functions.
Figure 2. eZ80F92 Flash Module Peripheral Bus Connector Pin Configuration
A0
A2
A4
A6
A8
A10
CS2
D3
A17
A5
V3.3_EXT
GND_EXT
A7
A22
A1
A18 A1 6
GND_EXT
RD
D5
GND_EXT
A9
A23
CS1
A13
A11
D0
A19
D6
BUSACK
V3.3_EXT
CS0
INSTRD
A15
D1
A14
A3
D4
D7
IOREQ
A21
GND_EXT
MREQ
A12
A20
DIS_FLASH
BUSREQ
WR
D2
DIS_ETH
JP1
HEADER 25X2
IDC50
12
34
56
78
910
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
PS018906-0908 Pin Description
eZ80F92 Flash Module
Product Specification
7
Table 2. eZ80F92 Flash Module Peripheral Bus Connector Pin Identification*
Pin
No. Symbol
Pull
Up/Down* Signal Direction Comments
1 A6 Bidirectional
2 A0 Bidirectional
3 A10 Bidirectional
4 A3 Bidirectional
5GND V
SS
/Ground (0 V).
6V
DD
3.3 V Supply Input Pin.
7 A8 Bidirectional
8 A7 Bidirectional
9 A13 Bidirectional
10 A9 Bidirectional
11 A15 Bidirectional
12 A14 Bidirectional
13 A18 Bidirectional
14 A16 Bidirectional
15 A19 Bidirectional
16 GND V
SS
/Ground (0 V).
17 A2 Bidirectional
18 A1 Bidirectional
19 A11 Bidirectional
20 A12 Bidirectional
21 A4 Bidirectional
22 A20 Bidirectional
23 A5 Bidirectional
24 A17 Bidirectional
25 DIS_ETH PU 10 kΩInput This pin is not used on the eZ80F92 Flash
Module. However, it is connected to the pad
of the CS8900 EMAC footprint.
26 DIS_FLASH PU 10 kΩInput This pin is not used on the eZ80F92 Flash
Module. However, it is connected to the pad
of the external Flash footprint.
PS018906-0908 Pin Description
eZ80F92 Flash Module
Product Specification
8
27 A21 Bidirectional
28 V
DD
3.3 V supply input pin.
29 A22 Bidirectional
30 A23 Bidirectional
31 CS0 Output
32 CS1 Output
33 CS2 Output
34 D0 PU 4k7 Bidirectional
35 D1 PU 4k7 Bidirectional
36 D2 PU 4k7 Bidirectional
37 D3 PU 4k7 Bidirectional
38 D4 PU 4k7 Bidirectional
39 D5 PU 4k7 Bidirectional
40 GND V
SS
/Ground (0 V).
41 D7 PU 4k7 Bidirectional
42 D6 Bidirectional
43 MREQ Bidirectional
44 IORQ Bidirectional
45 GND V
SS
/Ground (0 V).
46 RD Bidirectional
47 WR Bidirectional
48 INSTRD Output
49 BUSACK Output
50 BUSREQ PU 2k2 Input
* External capacitive loads on RD, WR, IORQ, MREQ, D0–D7, and A0–A23 should be below 10 pF to satisfy timing
requirements for the CPU. All unused inputs should be pulled to either V
DD
or GND, depending on their inactive lev-
els to reduce power consumption and to reduce noise sensitivity. To prevent EMI, the eZ80CLK output can be de-
activated via software in the eZ80F92 Peripheral Power-Down Register. All inputs are CMOS level 3.3 V (5 V
tolerant), except otherwise noted.
Table 2. eZ80F92 Flash Module Peripheral Bus Connector Pin Identification* (Continued)
Pin
No. Symbol
Pull
Up/Down* Signal Direction Comments
PS018906-0908 Pin Description
eZ80F92 Flash Module
Product Specification
9
I/O Connector
Figure 3 displays the pin layout of the eZ80F92 Flash Module’s I/O Connector (JP2) in the
50-pin package. Table 3 on page 9 lists the pins and their functions.
Figure 3. eZ80F92 Flash Module I/O Connector Pin Configuration
Table 3. eZ80F92 Flash Module I/O Connector Pin Identification*
Pin
No. Symbol
Pull
Up/Down
Signal
Direction Comments
1 PB7 Bidirectional
2 PB6 Bidirectional
3 PB5 Bidirectional
4 PB4 Bidirectional
5 PB3 Bidirectional
6 PB2 Bidirectional
7 PB1 Bidirectional
PB1
PB3
PB5
PB7
PC1
PC3
PC5
PC7
GND_EXT
PD1
PD3
PD5
PD7
DIS_IRDA
CS3
EZ80CLK
V3.3_EXT
FLASHWE
NMI
WAIT
GND_EXT
PB0
PB2
PB4
PB6
GND_EXT
PC2
PC4
RTC_VDD
PD0
PD2
PD4
PD6
GND_EXT
IICSCL
IICSDA
TDITDO
TRIGOUT
TCK TMS
RESET
GND_EXT
HALT_SLP
V3.3_EXT
PC6
PC0
JP2
HEADER 25X2
IDC50
12
34
56
78
910
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
PS018906-0908 Pin Description
eZ80F92 Flash Module
Product Specification
10
8 PB0 Bidirectional
9GND V
SS
/Ground (0 V).
10 PC7 Bidirectional
11 PC6 Bidirectional
12 PC5 Bidirectional
13 PC4 Bidirectional
14 PC3 Bidirectional
15 PC2 Bidirectional
16 PC1 Bidirectional
17 PC0 Bidirectional
18 PD7 Bidirectional
19 PD6 Bidirectional
20 GND V
SS
/Ground (0 V).
21 PD5 Bidirectional
22 PD4 PD 4k7 Bidirectional
23 PD3 Bidirectional
24 PD2 Bidirectional
25 PD1 Bidirectional
26 PD0 Bidirectional
27 TDO Output JTAG Data Output pin.
28 TDI/ZDA Input JTAG Data Input pin.
ZDA Bidirectional ZDI Data I/O.
29 GND V
SS
/Ground (0 V).
30 TRIGOUT Output Active High trigger event indicator.
31 TCK PU 10 kΩInput JTAG Input. High on reset enables ZDI mode; Low on
reset enables OCI debug.
32 TMS PU 10 kΩInput JTAG Test Mode Select Input.
33 RTC_V
DD
RTC supply from GoldCap (or external battery).
34 EZ80CLK Output 20 MHz synchronous CPU clock output.
Table 3. eZ80F92 Flash Module I/O Connector Pin Identification* (Continued)
Pin
No. Symbol
Pull
Up/Down
Signal
Direction Comments
PS018906-0908 Pin Description
eZ80F92 Flash Module
Product Specification
11
35 SCL PU 4k7 Bidirectional I
2
C Bus Clock.
36 GND V
SS
/Ground (0 V).
37 SDA PU 4k7 Bidirectional I
2
C Data Clock.
38 GND V
SS
/Ground (0 V).
39 FlashWE PU 10 kΩInput This pin has no function on the eZ80F92 Flash
Module. It is pulled up to V
DD
and a connection is
available on the external Flash memory pads.
40 GND V
SS
/Ground (0 V).
41 CS3 Output Chip select for onboard or external devices; CMOS
output 3.3 V.
42 DIS_IRDA PU 10 kΩInput Low disables onboard IRDA transceiver to use PD0/
PD1 UART pins externally.
43 RESET PU 2k2 Bidirectional Reset Output from module or push-button reset.
44 WAIT PU 2k2 Input Driving the WAIT pin Low forces the CPU to provide
additional clock cycles for an external peripheral or
external memory to complete its Read or Write opera-
tion.
45 VDD 3.3 V supply input pin.
46 GND V
SS
/Ground (0 V).
47 HALT_SLP Output, Active
Low
A Low on this pin indicates that the CPU enters either
HALT or SLEEP mode because of execution of either
a HALT or SLP instruction.
48 NMI PU 10 kΩSchmitt_Trigger
Input, Active
Low
The NMI input is a higher priority input than the
maskable interrupts. It is always recognized at the
end of an instruction, regardless of the state of the
interrupt enable control bits. This input includes a
Schmitt_Trigger to allow RC rise times. This external
NMI signal is combined with an internal NMI signal
generated from the WDT block before being con-
nected to the NMI input of the CPU.
49 VDD 3.3 V supply input pin.
Table 3. eZ80F92 Flash Module I/O Connector Pin Identification* (Continued)
Pin
No. Symbol
Pull
Up/Down
Signal
Direction Comments
PS018906-0908 Pin Description
eZ80F92 Flash Module
Product Specification
12
50 Reserved
* External capacitive loads on RD, WR, IORQ, MREQ, D0–D7, and A0–A23 should be below 10 pF to satisfy timing
requirements for the CPU. All unused inputs should be pulled to either V
DD
or GND, depending on their inactive levels,
to reduce power consumption and to reduce noise sensitivity. To prevent EMI, the eZ80CLK output can be deactivated
via software in the eZ80F91 Peripheral Power-Down Register. All inputs are CMOS level 3.3 V (5 V tolerant), except
otherwise noted.
Table 3. eZ80F92 Flash Module I/O Connector Pin Identification* (Continued)
Pin
No. Symbol
Pull
Up/Down
Signal
Direction Comments
PS018906-0908 Onboard Component Description
eZ80F92 Flash Module
Product Specification
13
Onboard Component Description
Logic-Level I/Os
The I/O connector features 24 general-purpose 3.3 V CMOS I/O pins that can be used as
outputs or inputs interfacing to external logic. All I/Os are 5 V tolerant. Some of the GPIO
pins support dual mode functions (SPI, Timer I/O, UARTs, and bit I/O with edge- or level-
triggered interrupt functions on each pin). For more information on eZ80F92 dual modes,
refer to eZ80F92/eZ80F93 Product Specification (PS0153).
Onboard Battery Backup
An onboard 0.1 F capacitor (GoldCap) is used to bridge power outages of 2–4 hours if the
power supply to the module is disconnected. The capacitor is charged to 3.1 V during nor-
mal operation and is discharged through the on-chip RTC. The VRTC pin is available on
the I/O connector of the module to connect external components to a power supply or to a
larger GoldCap.
Do not connect a Lithium Battery to the GoldCap capacitor, because onboard charging
circuitry for the capacitor can destroy the lithium battery.
Memory
The eZ80F92 Flash Module offers external SRAM memory and Flash memories. The wait
states selectable in the eZ80F92 MCU’s support memory operations, as described in this
section.
Wait States
To ensure that valid data is read from or written to slower memories, a number of wait
states must be inserted into the memory or I/O access operations by the controller. The
number of wait states that are required should be added by programming the chip select
control registers. To calculate the minimum number of wait states required, see Table 4.
Table 4. Chip Frequency to Wait State Cycle Time Calculation
MHz Cycle Time
12 83.3 ns
20 50.0 ns
Caution:
PS018906-0908 Onboard Component Description
eZ80F92 Flash Module
Product Specification
14
Static RAM
The eZ80F92 Flash Module features 512 KB of fast SRAM. Access speed is typically
50 ns, allowing zero-wait-state operation at 20 MHz. With the CPU at 20 MHz, SRAM
can be accessed with zero wait states in eZ80® mode. CS1_CTL (chip select CS1) can be
set to 08h (no wait states).
Flash Memory
The eZ80F92 Flash Module allows NOR Flash memories between 4 megabits (512 KB)
and 32 megabits (4 MB) to be added. The chips are housed in wide TSOP40 cases. Flash
ROM access times are 55 ns to 150 ns; typically 90 ns. The Flash Boot Loader, applica-
tion code, and user configuration data are held permanently in NOR Flash memory.
NOR Flash should be operated in Intel bus mode to satisfy setup and hold times and to
prevent bus contention with a WRITE cycle that could possibly follow. For proper CPU
operation at 20 MHz, first set the bus mode control register CS0_BMC (I/O address
0xF0h) to 82h, then set the Chip Select Control register CS0_CTL (I/O address 0xAAh) to
08h. These settings select Intel Bus Mode with two system clocks per bus cycle and zero
wait states.
The eZ80F92 Flash Module features the following memory configurations:
•
On-chip SRAM: 8 KB
•
Off-chip SRAM: 512 KB
•
On-chip Flash: 128 KB
•
Off-chip Flash: 1 MB
IrDA Transceiver
An onboard IrDA transceiver (ZHX1810) is connected to PD0 (TX), PD1 (RX), and PD2
(Shutdown, R_SD). The IrDA transceiver is of the LED type 870 nm Class 1.
The receiver supply current is 90 µA to150 µA and the transmitter supply current is
260 mA when the LED is active. The IrDA transceiver is accessible via the IrDA control-
ler attached to UART0 on the eZ80F92 device. The UART0 console and the IrDA trans-
ceiver cannot be used simultaneously.
To use the UART0 for console or to save power, the transceiver can be disabled by the
software or by an off-board signal when using the proper jumper selection. The transceiver
is disabled by setting PD2 (IR_SD) High or by pulling the DIS_IRDA pin on the I/O con-
nector Low. The shutdown is used for power savings. To enable the IrDA transceiver,
DIS_IRDA is left floating and PD2 is set to Low.
PS018906-0908 Onboard Component Description
eZ80F92 Flash Module
Product Specification
15
Reset Generator
The onboard Reset Generator Chip performs reliable Power-On Reset (POR). The chip
generates a reset pulse with a duration of 200 ms if the power supply drops below 2.93 V.
This reset pulse ensures that the board always starts in a defined condition. The RESET
pin on the I/O connector reflects the status of the RESET line. It is a bidirectional pin for
resetting external peripheral components or for resetting the eZ80F92 Flash Module with a
low-impedance output (for example, a 100 Ω push-button).
Serial Interface Ports
The controller contains two 16550-style UARTs with programmable baud rate generators.
UART0 is typically used for console I/O, and initial boot code upload, or to connect
remote peripherals that can be controlled and monitored via Ethernet. UART0 is con-
nected to GPIO PD[0:3] on the I/O connector. There are no RS-232 level shifters on the
eZ80F92 Flash Module.
Do not connect an RS-232 interface without level shifters.
UART1 can be used for modem attachment or as a communications port to a host com-
puter, where the embedded Ethernet module emulates an AT-style modem for internet
access. UART1 does not offer onboard RS-232 level shifters.
Note:
PS018906-0908 Onboard Component Description
eZ80F92 Flash Module
Product Specification
16
Physical Dimensions
The size of the eZ80F92 Flash Module PCB is 64 x 64 mm. See Figure 4.
Figure 4. Dimension Drawing
max.
8.3 mm
2.54 mm
11
Top View
Bus Connector
I/O Connector
8.5 mm
64 mm
63.5 mm
55.88 mm
9 mm
7 mm
6.2 mm
2.7 mm IrDA
PS018906-0908 Onboard Component Description
eZ80F92 Flash Module
Product Specification
18
Mounting the Module onto the eZ80® Development Platform
The eZ80F92 Flash Module can be mounted in several positions. Depending on volume
and area restrictions, it can be mounted horizontally or vertically with or without compo-
nents between the connectors on the eZ80® Development Platform. Figure 7 displays
examples.
Figure 7. Mounting Examples
Low Profile Mounting
64 mm 11
8.3 mm
I/O
Carrier Board
H = 4.5 mm 1.7 mm
Bus
1
Stacked Mounting
1
Modem or Power Supply
Carrier Board
8.5 mm
H = 4.5 mm
64 mm
50.5 mm max
63.5 mm
I/O
Bus
PS018906-0908 Onboard Component Description
eZ80F92 Flash Module
Product Specification
19
ESD/EMI Protection
The eZ80F92 Flash Module is a component that is intended to be part of a system
design for end-user devices. Therefore, you must take precaution to use ESD protection
on the I/O pins.
CMOS I/Os are ESD-sensitive and must be handled with care. Handling of the module
should be performed in ESD-safe environments (for example, with a wrist-wrap
attached). When developing applications, you must provide for proper ESD protection
on external, user-accessible I/Os (for example, suppressor arrays for the I/Os).
The components are mounted on a multilayer PCB to provide a stable ground plane for
onboard components. The module features several GND pins next to pins with higher
switching frequency for short ground returns. If unused, the clock output can be separated
from the module header by removing a series resistor on the module. Removing the series
resistor further reduces electromagnetic emissions.
Absolute Maximum Ratings
Stresses greater than those listed in Table 5 can cause permanent damage to the device.
These ratings are stress ratings only. Operation of the device at any condition outside those
indicated in the operational sections of these specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
For improved reliability, unused inputs should be tied to one of the supply voltages (VDD
or VSS).
Table 5. Absolute Maximum Ratings
Parameter Min Max Units
Standard operating temperature 0 +70 ºC
Storage temperature –45 +85 ºC
Operating Humidity (RH @ 50 ºC) 25% 90%
Operating Voltage (±5%) — 3.3 V
Caution:
Caution:
PS018906-0908 Onboard Component Description
eZ80F92 Flash Module
Product Specification
20
Power Supply
The eZ80F92 Flash Module requires a regulated external 3.3 V DC/0.5 A power supply.
You may use a Low Dropout Regulator (LDO) to get 3.3 V from 5 V or use the following
switcher circuit to generate 3.3 V from unregulated 10 V to 28 V power supply.
Power connections conventional description is provided in the following table:
Figure 8 displays two power supply examples.
Connection Circuit Device
Power VCC V
DD
Ground GND V
SS
Figure 8. Power Supply Examples
To Module
Switcher 10—28V → 3.3V
V
10—28V
C1
1000uF
C2
100n
VIN
1 FB 4
VOUT 2
G
N
D
3
O
N
/
O
F
F
5
U1
LM2575S-ADJ
D1
1A/30V
L1
330uH/1A
1%
C3
470uF/6.3V
R1
5k6
R2
3k3
3.3V
Low ESR
GND
1%
GND
V
4-6V
VI G
N
D
VO
U1
LM3940
LDO 5V → 3.3V
3.3V
GND
C3
470uF/6.3V
Low ESR
C1
100n
GND
IN
CC
V
DD
V
DD
PS018906-0908 Schematics
eZ80F92 Flash Module
Product Specification
21
Schematics
Figure 9 through Figure 17 on page 29 displays the layout of the eZ80F92 Flash Module. Ethernet and external Flash circuiting devices are not
loaded on the eZ80F92 Flash Module. However, these devices appear in the following schematics for reference.
Figure 9. eZ80F92 Flash Module Schematics—Top Level
07
09
03
04
08
05
02
06
Ethernet
CS8900A
SD[0..7]
-ETHRD
-ETHWR
-SLEEP
-ACTIVE
ETHIRQ
SA[0..3]
IOCHRDY
Connector
Headers
RTC_VDD
V3.3_EXT
GND_EXT
D[0..7]
CLK_OUT
-RESET
IICSDA
IICSCL
A[0..23]
-FLASHWE
PB[0..7]
PC[0..7]
PD[0..7]
-CS[0..3]
-DIS_IRDA
JTAG[1..4]
-RD
-WR
-IOREQ
-MREQ
-INSTRD
-WAIT
-HALT_SLP
-BUSACK
-BUSREQ
-NMI
TDO
-DIS_FLASH
CPU
eZ80
D[0..7]
A[0..23]
-RD
-WR
IICSDA
IICSCL
-RESET
CLK_OUT
-BUSREQ
-BUSACK
-IOREQ
-MREQ
-INSTRD
-WAIT
-HALT_SLP
-NMI
PB[0..7]
PC[0..7]
PD[0..7]
JTAG[1..4]
-CS[0..3]
RTC_VDD
TDO
Power
PowerSupply
GND
V3.3
ROM
NOR-Flash
D[0..7]
A[0..23]
-RD
-WR
-CSFLASH
-RESFLASH
-FLASHWE
Peripherals
Reset
-RESET
IRDA_TXD
IRDA_RXD
IRDA_SD
Logic
CTRL-Logic
-RD
-WR
-ETHRD
-ETHWR
D[0..7]
SD[0..7]
A[0..23]
SA[0..3]
ETHIRQ
-SLEEP
-ACTIVE
-DIS_IRDA
IRDA_SD
IRDA_TXD
IRDA_RXD
-CSFLASH
-RESFLASH
PD[0..7]
-CS[0..3]
-RESET
-DIS_FLASH
IOCHRDY
-WAIT
RAM
SRAM
D[0..7]
A[0..23]
-RD
-WR
-CS1
V3.3
GND
-RESET
IRDA_TXD
IRDA_RXD
IRDA_SD
D[0..7]
A[0..23]
A[0..23]
-CSFLASH
-RESFLASH
-FLASHWE
-WR
-WR
-RD
-RD
D[0..7]
-CS1
-IOREQ
-MREQ
-INSTRD
-WAIT
-HALT_SLP
-BUSREQ
-BUSACK
-NMI
CLK_OUT
RTC_VDD
IICSDA
IICSCL
PB[0..7]
PC[0..7]
JTAG[1..4]
D[0..7]
A[0..23]
-CS[0..3]
JTAG[1..4]
-FLASHWE
RTC_VDD
-RESET
CLK_OUT
-RD
-WR
-NMI
-BUSACK
-BUSREQ
-IOREQ
-MREQ
-INSTRD
-WAIT
-HALT_SLP
IICSCL
IICSDA
PB[0..7]
PC[0..7]
PD[0..7]
ETHIRQ
-SLEEP
-ACTIVE
-CSFLASH
-WR
-RESET
-ETHWR
-ACTIVE
SA[0..3]
PD[0..7]
-RESFLASH
IRDA_TXD
IRDA_SD
D[0..7]
-ETHRD
-DIS_IRDA
-CS[0..3]
IRDA_RXD
SD[0..7]
ETHIRQ
A[0..23]
-RD
-SLEEP
V3.3
GND
TDO
TDO
-DIS_FLASH
IOCHRDY
-WAIT
PS018906-0908 Schematics
eZ80F92 Flash Module
Product Specification
22
Figure 10. eZ80F92 Flash Module Schematics—100-Pin QFP eZ80F92 Device
=
=
=
=
eZ80=IIC-bus-master
GoldC
(= JTAG0)
PLACE CAPS CLOSE
TO PINS
97,7,33,43
D[0..7]
A[0..23]
CLK_OUT
XOUT
XIN
CLK_OUT
XOUT
VDD
-RESET
VSS
XIN
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
-CS0
-CS1
-CS2
-CS3
-CS[0..3]
D[0..7]
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
PC[0..7]PB[0..7]
IICSCL
IICSDA
-NMI
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
TDO
TDI JTAG1
TRIGOUT JTAG2
TCK JTAG3
TMS JTAG4
RTC_VDD
RTC_XOUT
RTC_XIN
PD[0..7]
JTAG[1..4]
-BUSREQ
-BUSACK
-HALT_SLP
-IOREQ
-MREQ
-RD
-WR
-INSTRD
-WAIT
IICSDA
IICSCL
PB[0..7]
PC[0..7]
PD[0..7]
A[0..23]
-CS[0..3]
-RESET
-IOREQ
-MREQ
-RD
-WR
-INSTRD
-WAIT
-HALT_SLP
-BUSACK
-BUSREQ
-NMI
JTAG[1..4]
RTC_XOUT
RTC_XIN
RTC_VDD
RTC_VDD
TDO
V3.3
V3.3V3.3 V3.3
C18
100nF
R29
10k
C21
1nF
R32
220
R31 0
D1
TMM B
A
MINIM
E
R28
100
C19
0,1F
GOLD
C
C22
1nF
C24
18pF
U8
eZ80F92
TQFP100
83
75
87
82
84
86
96
97
100
35
85
74
17
54
66
73
99
49
98
20
81
64
88
89
90
91
92
93
94
95
80
72
79
65
78
29
77
45
76
30
63
71
50
62
53
70
60
36
69
21
68
59
67
31
55
58
7
37
33
61
46
1
51
22
56
57
26
34
27
32
28
52
38
48
2
8
39
47
40
3
23
4
43
41
5
24
42
44
6
9
25
10
18
11
12
13
19
14
15
16
PC7/RI1
PD7/RI0
VDD
PC6/DCD1
VSS
XOUT
VDD
VSS
PHI
D0
XIN
PD6/DCD0
A14
BUSACK
TDO
PD5/DSR0
SCL
INSTRD
SDA
A15
PC5/DSR1
TRIGOUT
PB0/T0_IN
PB1/T1_IN
PB2/SS
PB3/SCK
PB4/T4_OUT
PB5/T5_OUT
PB6/MISO
PB7/MOSI
PC4/DTR1
PD4/DTR0
PC3/CTS1
TDI (ZDA)
PC2/RTS1
CS0
PC1/RxD1
IOREQ
PC0/TxD1
CS1
TCK (ZCL)
PD3/CTS0
WAIT
TMS
BUSREQ
PD2/RTS0/IR_SD
RTC_VDD
D1
PD1/RxD0/IR_RXD
A16
PD0/TxD0/IR_TXD
RTC_XOUT
VDD
CS2
HALT_SLP
RTC_XIN
VDD
D2
VDD
VSS
MREQ
A0
RESET
A17
VDD
VSS
A21
VSS
A22
CS3
A23
NMI
D3
WR
A1
VSS
D4
RD
D5
A2
A18
A3
VDD
D6
A4
A19
D7
VSS
A5
A6
A20
A7
VDD
A8
A9
A10
VSS
A11
A12
A13
Y3
32.768kHz
XTAL3
Y2 20 MHz
HC49SM
R27 100K
C23
1nF
C16
20pF
C17
20pF
C20
18pF
D[0..7]
A[0..23]
IICSCL
IICSDA
CLK_OUT
PB[0..7]
PC[0..7]
PD[0..7]
-CS[0..3]
-RESET
-IOREQ
-MREQ
-RD
-WR
-INSTRD
-HALT_SLP
-BUSACK
-WAIT
-BUSREQ
-NMI
JTAG[1..4]
RTC_VDD
TDO
PS018906-0908 Schematics
eZ80F92 Flash Module
Product Specification
23
Figure 11. eZ80F92 Flash Module Schematics—36-Pin SRAM Device
A19/A20/A21/A22/A23
not used here
4.7k
VSS
VDD
A0
A1
A2
A3
-CS1
D0
D1
D2
D3
-WR
A4 A5
A6 A7
A16
A15
A14
A13
-RD
D7
D6
D5
D4
A12
A11
A10A9
A8
A18
A17
A[0..23]
D[0..7]
-CS1
-RD
-WR
D0
D1
D2
D3
D4
D5
D6
D7
V3.3
GND
U1
512kx8 SRAM
SOJ36.400
31
35
6
34
5
33
7
32
4
3
24
2
25
23
26
36
29
30
1
22
28
13
27
21
8
11
12
18
17
10
19
20
16
15
14
9
OE
A18
CE
A17
A4
A16
I/O0
A15
A3
A2
A14
A1
I/O4
A13
I/O5
N.C.
I/O6
I/O7
A0
A12
VSS
WE
VDD
A11
I/O1
I/O2
I/O3
A9
A8
VSS
N.C.
A10
A7
A6
A5
VDD
RN1
C7
100nF
U2E
74LVC04/SO
11 10
U2F
74LVC04/SO
13 12
U2D
74LVC04/SO
9 8
D[0..7]
A[0..23]
-CS1
-RD
-WR
PS018906-0908 Schematics
eZ80F92 Flash Module
Product Specification
24
Figure 12. eZ80F92 Flash Module Schematics—NOR Flash Device
Intel-Type
A20/A21 used for
16/32Mbit-Flash
Pin37=N.C.
for 4Mbit-
Flashes
Note: Must be pulled ’low’
externally for programming.
A22/A23
not used here
=
=
=
=
=
=
=
=
U3 IS NOT POPULATED
A[0..23]
D[0..7]
-CSFLASH
-RD
-WR
-RESFLASH
-CSFLASH
-RD
-WR
VPP
A13
VSS
A14
A19
A4
A0
A3
VDD
A6
A[0..23]
A7
A2
A11
A10
A18
A1
A17
A9
A8
A16
A5
A15
A20
-RESFLASH
A12
-FLASHWE
A21
D4DFLASH4
D3DFLASH3
D2DFLASH2
D1DFLASH1
D6DFLASH6
D5DFLASH5
D7DFLASH7
D0DFLASH0
D[0..7]
-WP
VDD
-FLASHWE
V3.3
GND
U2A
74LVC04/SO
12
U3
MT28F008B3VG
TSOP40.20MM
2521
2620
2719
2818
3217
3316
3415
3514
8
7
36
6
5
4
3
2
1
40
13
37 38
22
24
9
10
12
11
29
23
39
30
31
DQ0A0
DQ1A1
DQ2A2
DQ3A3
DQ4A4
DQ5A5
DQ6A6
DQ7A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19 N.C.
CE
OE
WE
RP
WP
VPP
N.C.
VSS
VSS
VDD
VDD
R2
0R
C8
100nF
R1
10K
D[0..7]
A[0..23]
-CSFLASH
-RD
-WR
-RESFLASH
-FLASHWE
PS018906-0908 Schematics
eZ80F92 Flash Module
Product Specification
25
Figure 13. eZ80F92 Flash Module Schematics—Module
device addresses:
00300h bis 0030Fh
TX+ <-> 1
TX- <-> 2
RX+ <-> 3
RX- <-> 6
=
int. Pull-Up
yellow
90 degree,
stacked
dual-LED
ESD protection array
green
place
near
J1
through hole
solder pad
don’t stuff
don’t
stuff
VSS
VDD
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD[0..7]
SA0
SA1
SA2
SA3
TD-
RXD- RD-
TXD-
TXD+
RXD+
SA[0..3]
RXD-
RXD+
TXD-
TXD+
CTD
CRD
ETHIRQ
ETHIRQ
-ETHWR -ETHWR
-SLEEP
-LANLED-ACTIVE
SD[0..7]
SA[0..3]
-SLEEP
-LANLED
-LINKLED
-ETHRD
-ETHRD
TD+
RD+
RD+
-LINKLED
RD- TD-
-LANLED
TD+
VDD
VSS CASE
V3.3
GND
GND GND
V3.3
GND
C15
100nF
U7
CS8900A-CQ3
TQFP100
71
72
73
74
65
66
67
68
58
59
60
51
52
53
54
37
1
38
2
39
3
40
4
41
5
42
6
43
7
44
8
45
9
46
10
47
11
48
12
49
13
50
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
55
56
57
61
62
63
64
69
70
75
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
SD4
SD5
SD6
SD7
SD0
SD1
SD2
SD3
SA17
SA18
SA19
SA13
SA14
SA15
SA16
SA0
AVSS
SA1
ELCS
SA2
EECS
SA3
EESK
SA4
EEDATAOUT (TDO)
SA5
EEDATAIN
SA6
CHIPSEL
SA7
DVSS
SA8
DVDD
SA9
DVSS
SA10
DMARQ2
SA11
DMACK2
REFRESH
DMARQ1
SA12
DMACK1
DMARQ0
DMACK0
CSOUT
SD15
SD14
SD13
SD12
DVDD
DVSS
SD11
SD10
SD9
SD8
MEMW
MEMR
INTRQ2
INTRQ1
INTRQ0
IOCS16
MEMCS16
INTRQ3
SHBE
DVSS
DVDD
DVSS
IOR
IOW
AEN (TCK)
IOCHRDY
DVDD
DVSS
RESET
TEST
SLEEP
BSTATUS/HC1
DI+
DI-
CI+
CI-
DO+
DO-
AVDD
AVSS
TXD+
TXD-
AVSS
AVDD
RXD+
RXD-
RES
AVSS
AVDD
AVSS
XTAL1
XTAL2
LINKLED/HC0
LANLED
R26
100
U9
LCDA15C-6
SO8.150
1
2
3
4 5
6
7
8
R24
8R2
R25 8R2
C12
560pF
Y1
20.000 MHz
HC49SM
R23
4k99/1%
R22
4k7
LD2
LED ye
THT
R19
10k
J1
HFJ11-1041
HALOFASTJACK
1
2
3
4
5
6
8
1
2
3
4
5
6
8
LD1
LED gn
THT
C13
100nF
L2
ferrite
tbd
JP4
HEADER 1
SIP1
1
R34
10k
0603
R20
220
0603
R21
220
0603
C14
100nF
ETHIRQ
-ETHWR
-ACTIVE
-SLEEP
SA[0..3]
SD[0..7]
-ETHRD
IOCHRDY
PS018906-0908 Schematics
eZ80F92 Flash Module
Product Specification
26
Figure 14. eZ80F92 Flash Module Schematics—IrDA Reset
power supervisor
IR-transceiver
(MMA 020 4)
open-drain
alternative:
Maxim
MAX6802UR29D3
VSS
VDD
IRDA_TXD
IRDA_SD
IRDA_RXD
IRDA_TXD
IRDA_RXD
IRDA_SD
-RESET
V3.3
GND
V3.3
V3.3
C9
100nF
0603
R6
2R7, 0.25W
1206
R5
68R C11
330nF
U5
ZHX1810
2
4
3
1
5
6
0
TXD
SD
RXD
LEDA
VCC
GND
T
C10
10nF
0603
U4
MAX6328UR29
SOT-23-L3
2
1 3
RESET
GND VDD
R3
2k2
0603
-RESET
IRDA_RXD
IRDA_TXD
IRDA_SD
PS018906-0908 Schematics
eZ80F92 Flash Module
Product Specification
27
Figure 15. eZ80F92 Flash Module Schematics—Headers
place near eZ80
output (PHI)
=
=
=
=
(JTAG0 =)
connector 2connector 1
CLK_OUT
RTC_VDD
A[0..23]
EZ80CLK
IICSDA IICSDA
IICSCL IICSCL
D[0..7]
-FLASHWE
-CS[0..3]
-DIS_FLASH
-DIS_IRDA
PB[0..7]
PC[0..7]
PD[0..7]
-RD
-WR
-IOREQ
-INSTRD
-HALT_SLP
-BUSREQ -BUSREQ
-BUSACK
-NMI
JTAG[1..4]
-RESET
V3.3_EXT
JTAG4 TMS
TDO
JTAG1 TDI
JTAG3 TCK
JTAG2 TRIGOUT
PB1
PB3
PB5
PB7
PC1
PC3
PC5
PC7
GND_EXT
PD1
PD3
PD5
PD7
-DIS_IRDA-CS3
EZ80CLK
V3.3_EXT
-FLASHWE
-NMI
-WAIT
GND_EXT
A0
A2
A4
A6
A8
A10
-CS2
PB0
PB2
PB4
PB6
GND_EXT
PC2
PC4
RTC_VDD
PD0
PD2
PD4
PD6
GND_EXT
IICSCL
IICSDA
TDITDO
TRIGOUT
TCK TMS
-RESET
-MREQ
TDO
-CS_RAM
D3
A17
A5
V3.3_EXT
GND_EXT
A7
A22
A1
A18 A16
GND_EXT
-RD
D5
GND_EXT
A9
A23
-CS1
A13
A11
FUTURE_USE
GND_EXT
D0
A19
D6
-BUSACK
V3.3_EXT
-CS0
-INSTRD
A15
D1
A14
A3
D4
D7
-IOREQ
A21
GND_EXT
-MREQ
A12
A20
-DIS_FLASH
-BUSREQ
-WR
D2
GND_EXT
-HALT_SLP
V3.3_EXT
PC6
PC0
-WAIT-WAIT
V3.3
GND
R9
33
R8
4k7
R7
4k7
R12
10k
R11
10k
R13
4k7
R10
2k2
0603
JP1
HEADER 25X2
IDC50
12
34
56
78
910
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
JP2
HEADER 25X2
IDC50
12
34
56
78
910
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
R33
2k2
0603
V3.3_EXT
A[0..23]
CLK_OUT
-RESET
RTC_VDD
IICSDA
IICSCL
D[0..7]
-FLASHWE
-CS[0..3]
-DIS_FLASH
-DIS_IRDA
PB[0..7]
PC[0..7]
PD[0..7]
-RD
-WR
-IOREQ
-INSTRD
-HALT_SLP
-BUSACK
-WAIT
-BUSREQ
-NMI
JTAG[1..4]
GND_EXT
-MREQ
TDO
-CS_RAM
PS018906-0908 Schematics
eZ80F92 Flash Module
Product Specification
28
Figure 16. eZ80F92 Flash Module Schematics—Power Supply
no power supply on board!
common power plane
common ground plane
for test purposes
don’t stuff
Input: VDD(=V3.3) = 3.3V –5%
Power: Pmax = 1.6W
Ptyp = 0.4W
Current: Imax = 200mA (IrDA not in use)
Imax = 460mA (IrDA in use)
Ityp = 100mA
GND
GND
V3.3
V3.3
V3.3
GND
C1
47uF
TAJC
C2
47uF
TAJC
JP3
HEADER 2
SIP2
1
2
C3
1nF
C4
100nF
C5
1nF
C6
100nF
PCB1
E-NET Module Rev.B
98Cxxxx-xxx
V3.3
GND
PS018906-0908 Schematics
eZ80F92 Flash Module
Product Specification
29
Figure 17. eZ80F92 Flash Module Schematics—Control Logic
=
=
=
=
=
=
=
=
=
=
don’t stuff
=
PD3 and PD5
not used here
-CS1 and-CS2
not used here
only A0,A1,A2,A3
are used here
-RD
-WR
-ETHRD
-ETHWR
VSS
VDD
SD[0..7]D[0..7]
SA[0..3]A[0..23]
-SLEEP
-ACTIVE
D[0..7] SD[0..7]
A[0..23] SA[0..3]
SA0A0
SA1A1
SA2A2
SA3A3
PD[0..7]
-CS[0..3]
-CSFLASH
-RESFLASH-RESET
IRDA_TXDPD0
IRDA_RXDPD1
IRDA_SD
-RESET
-RD
-WR
-ETHRD
-ETHWR
-CS3 -CSETH
-CS0
-CSFLASH
IRDA_SD
PD7
PD6
ETHIRQPD4
-DIS_IRDA
-DIS_FLASH
IR_SDPD2
DISABLE_FLASH
DISABLE_IRDA
-DIS_FLASH
-DIS_IRDA
-WAIT
-WAIT
V3.3
GND
R17
10k
0603
U2B
74LCX04
TSSOP14
3 4
R35 0
U2C
74LCX04
TSSOP14
5 6
R30
10k
0603
R14 0R
U2D
74LCX32
TSSOP14
12
13
11
U6A
74LCX32
TSSOP14
1
2
3
R15 0R
U6B
74LCX32
TSSOP14
4
5
6
U6D
74LCX32
TSSOP14
12
13
11
-RD
-WR
-ETHRD
-ETHWR
SD[0..7]D[0..7]
A[0..23] SA[0..3]
ETHIRQ
-SLEEP
-ACTIVE
PD[0..7]
-CS[0..3]
-DIS_FLASH
-DIS_IRDA
-CSFLASH
-RESFLASH
IRDA_TXD
IRDA_SD
IRDA_RXD
-RESET
IOCHRDY
-WAIT
PS018906-0908 Customer Support
eZ80F92 Flash Module
Product Specification
30
Customer Support
For answers to technical questions about the product, documentation, or any other
issues with Zilog’s offerings, please visit Zilog’s Knowledge Base at
http://www.zilog.com/kb.
For any comments, detail technical questions, or reporting problems, please visit
Zilog’s Technical Support at http://support.zilog.com.
