CM320
z Updateable USB2.0 Card Reader Controlle
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CM320
Updateable USB2.0 Card Reader Controller
- More Features, More Flexibility, Lowest BOM Cost
Datasheet
Version 1.0
C-MEDIA ELECTRONICS I NC.
TEL: 886-2-8773-1100 FAX: 886-2-8773-2211
6F, 100, Sec. 4, Civil Boulevard, Taipei, Taiwan 106, R.O.C.
For detailed product information, please contact sales@cmedia.com.tw
Date: 5/3/2006
Version: 1.0
CM320
Updateable USB2.0 Card Reader Controlle
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Date: 5/3/2006 Version: 1.0
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NOTICES
THIS DOCUMENT IS PROVIDED “AS IS” WITH NO WARRANTIES WHAT SO EVER,
INCLUDING ANY WARRANTY OF MERCHANT ABILITY, NONINFRINGEMENT, FITNESS FOR
ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY
PROPOSAL, DOCUMENT OR SAMPLE.
ALL RIGHTS RESERVED. NO PART OF THIS DOCUMENT MAY BE REPRODUCED OR
TRANSMITTED IN ANY FORM OR BY ANY MEANS, ELECTRONIC OR MECHANICAL,
INCLUDING INFORMATION STORAGE AND RETRIEVAL SYSTEMS, WITHOUT
PERMISSION IN WRITING FROM THE C-MEDIA ELECTRONICS, INC.
Third-party brands and names are the property of their respective owners.
Copyright 2006-2007 © C-Media Electronics Inc.
*C-Media reserves the right to modify the specifications without notice.
CM320
Updateable USB2.0 Card Reader Controlle
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Date: 5/3/2006 Version: 1.0
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1. INTRODUCTION
Overview
The CM320 is another value-added card reader controller solution derived from CM220. It
preserves CM220 features:
z True “single-chip” card reader solution
z Online updateable architecture
z Card Manager Application software
On top of that, CM320 integrate most of external components: 4 MOS(except MD), 2 regulators,
1 Diode and many passive devices to minimize customer BOM cost, let it be the industry
highest integration card reader controller solution.
Its unique software structure makes the function easy to configure to meet the customer
versatile demand.
z Flexible card configuration
z Customized smart button design
True “single-chip” card reader solution
The CM320’s patented architecture enables the widest possible compatibility and in-the-field update capability,
without the need for external EEPROM or additional components, reducing parts count and costs. The driver
software on the host provides all the required programmability. OEMs and component manufacturers need not be
concerned about stock issues relating to outdated firmware.
CM320
Updateable USB2.0 Card Reader Controlle
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Online updateable architecture
Due to the rapid change of media card specifications and the growth in capacities in every format, the future
compatibility of media card reader solutions is becoming more important. C-Media’s innovative CM320 allows
end-users online update their card readers via Window’s “Automatic Update” Function
Card Manager Application software
9 File-security Function
9 Private-Disk Function
9 On-Line Update Hotkey
9 Multiple Window
The CM320 can be optionally supplied with a special purpose application shell: the C-Media Card Manager. The
C-Media Card Manager provides an easy-to-use file management and security function for all media cards.
Flexible Card Configuration
Any combination of Flash cards is possible and can be programmed by HW or SW. Card icons can also be
customized as requested.
CM320
Updateable USB2.0 Card Reader Controlle
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Smart Button Design
To provide end-user friendly operation interface, just press one button, many things, ex copy file, print file,
encrypt/decrypt file,…etc. could be done without the hassle. Middleware program could be provided to configure
the button functions in the future.
Application
Internal Type Card Reader
◆For Desktop PC
◆For Notebook PC
◆For Barebone
◆For PC DIY market card reader
External Type Card Reader
◆ Single Slot Design
◆ Two Slot Design
◆ Multi Slot Design
Niche Market Card Reader
◆ DMA (Digital Media Adapter) or media server
◆ Card reader + Hub
◆ Card reader + VOIP Phone
◆ Others
CM320
Updateable USB2.0 Card Reader Controlle
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Features
USB 2.0 High-Speed operation, USB1.1 Full/Low-Speed backward compatible
Compliant with USB Mass Storage Device Class specifications
Driver updates provided transparently via Microsoft’s Windows Update service
USB bus power and self power capability
Single chip with integrated USB2.0 PHY
Supports All-in-1 card reader systems.
Flash media card specifications supported:
‐ CompactFlash (ver 3.0) / Microdrive
‐ Smart Media Card
‐ xD-Picture Card (Ver 1.2)
‐ MultiMediaCard / MultiMediaCardplus (Ver4.1, 1/4/8 bit mode)
‐ SD Card / High Speed SD Card (SD ver 1.1)
‐ MemoryStick / High Speed MemoryStick / Memory Stick Pro / High Speed
MemoryStick Pro
Also support small-size flash cards
‐ miniSD / T-Flash Card (Micro-SD)/MemoryStick Duo / MemoryStick-Pro Duo
‐ RS-MMC / MMCmobile (Ver4.1, 1/4/8 bit mode)
In addition,
ROM-Type flash cards are also supported
‐ MMC ROM, MMCplus ROM, MMCmobile ROM
‐ MemoryStick ROM, MemoryStick Pro ROM
‐ SD ROM
SPI interface for external MCU
EEPROM Serial Interface for customized VID/PID via USB interface
Built-in regulators
Built-in PMOS except for MD (Needless of external PMOS for CF)
No external component needed for C3 Mode (NB Power Saving Mode)
Support 1~5 LED displays to indicate operation status
“Designed for Windows” logo certified driver with Windows Update option.
USB IF logo qualified
xD-Picture certified
MS-logo certified
CM320L (QFP 100) and CM320S (LQFP 48) are both available now.
CM320
Updateable USB2.0 Card Reader Controlle
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2. BLOCK DIAGRAM
CM320
Updateable USB2.0 Card Reader Controlle
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Date: 5/3/2006 Version: 1.0
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CM320
Updateable USB2.0 Card Reader Controlle
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Date: 5/3/2006 Version: 1.0
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3. Ordering Information
Model Number Package Operating Ambient
Temperature Supply Range
CM320L 100-Pin QFP 0o C to +70o C DVdd =3.3V, AVdd = 3.3V
CM320S 48-Pin LQFP 0o C to +70o C DVdd =3.3V, AVdd = 3.3V
[Note]: GPIO, LED, and Smart Button Share the same Pins
Feature CM320L CM320S
Package QFP 100 LQFP 48
SPI Yes Yes
EEPROM Interface (For
VID/PID) Yes Yes
High Speed MMC Yes (8bit mode, Ver4.1) Yes (8bit mode, Ver4.1)
High Speed SD Yes (SD Ver1.1) Yes (SD Ver1.1)
GPIO Yes Yes
LED Display 1~5 LED x2, x1 LED
Updateable Yes Yes
Card Manager UI Yes Yes
Card Configuration Yes Yes
Smart Button Design Yes Yes
Supported Card All SD/MMC/MS/MS-Pro
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Updateable USB2.0 Card Reader Controlle
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4. PIN DESCRIPTIONS & ASSIGNMENT
CM320L
100
pin # Symbol Type
I/O
Type Description
1 VCC3V PWR Digital power. Connected to 3.3 V
2 CFPWR O CF card power MOS
3 MSCD I ST MS Card detect pin, low active
4 MSD[2] IO SR, ST MS card data bus
5 MSD[0] IO SR, ST MS card data bus
6 MSD[1] IO SR, ST MS card data bus
7 MSBS O SR MS Bus State Output
8 LED
IO SR Card access indicator Led, High
active
9 GPIO0 IO SR, ST General Purpose Input Output Pin
10 XDD[7] IO SR, ST XD/SM card data bus
11 XDCD I ST XD Card detect pin, low active
12 SMCD I ST SM Card detect pin, low active
13 GPIO1 IO SR, ST General Purpose Input Output Pin
14 GPIO5 IO SR, ST General Purpose Input Output Pin
15 SMWP I ST SM card write protect, low active
16 TMODE I ST Chip test mode enable, High active
17 CFCS0 O SR CF card select 0
18 CFCS1 O SR CF card select 1
19 CFIOR O SR CF card read enable, low active
20 CFIOW O SR CF card write enable, low active
21 CFRST O SR CF card reset, low active
22 CFSA[2] O SR CF card address bus
23 CFSA[1] O SR CF card address bus
24 CFSA[0] O SR CF card address bus
25 CFD[0] IO SR, ST CF card data bus
26 CFD[1] IO SR, ST CF card data bus
27 CFD[8] IO SR, ST CF card data bus
28 CFD[2] IO SR, ST CF card data bus
29 CFD[9] IO SR, ST CF card data bus
30 CFD[10] IO SR, ST CF card data bus
CM320
Updateable USB2.0 Card Reader Controlle
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31 CFCD I ST CF Card detect pin, low active
32 GND PWR Digital Ground pin
33 VCC3V PWR Digital power. Connected to 3.3 V
34 SDPWR O SD Card power MOS
35 NC Not Connected Pin
36 NC Not Connected Pin
37 XSCI
I Analog input. Crystal oscillator
input 12M
38 XSCO
O Analog output. Crystal oscillator
output 12M
39 VCCHST
PWR Analog power pin. Connected to
3.3V power
40 GND_U20 PWR Analog ground
41 RREF
I Analog input.
Connects external reference
resistor (12.1k +- 1%) to
Analog GND
42 DM
IO Bidirection pin, USB 2.0 data in
data negative pin terminal
43 DP
IO Bidirection pin, USB 2.0 data in
data positive pin terminal
44 VCCA
PWR PHY power in for analog.
Connected to 3.3V
45 GNDA PWR Analog Ground pin
46 GND PWR Digital Ground pin
47 VCC5V(I) I 5V input of 5-> 3.3V regulator
48 VCC3V(O) O 3V output of 5-> 3.3V regulator
49 N.C.
50 VCC2.5V(O) O 2.5V output of 3.3->2.5V regulator
51 GND(O) PWR Digital Ground pin
52 GND(O) PWR Digital Ground pin
53 CFD[3] IO SR, ST CF card data bus
54 CFD[11] IO SR, ST CF card data bus
55 CFD[4] IO SR, ST CF card data bus
56 CFD[12] IO SR, ST CF card data bus
CM320
Updateable USB2.0 Card Reader Controlle
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57 CFD[5] IO SR, ST CF card data bus
58 CFD[13] IO SR, ST CF card data bus
59 CFD[6] IO SR, ST CF card data bus
60 CFD[14] IO SR, ST CF card data bus
61 CFD[7] IO SR, ST CF card data bus
62 CFD[15] IO SR, ST CF card data bus
63 GPIO3 IO SR, ST General Purpose Input Output Pin
64 GPIO4 IO SR, ST General Purpose Input Output Pin
65 SDD[2] IO SR, ST SD card data bus
66 SDD[3] IO SR, ST SD card data bus
67 SDO
IO SR, ST SPI - Data Output
EEPROM – DI
SD - SDD[4]
68 SDCMD IO SR, ST SD card command bus
69 SDI
IO SR, ST SPI - Data Input
EEPROM – DO
SD - SDD[5]
70 SDCLK O SR SD card clock
71 GND PWR Digital Ground pin
72 VCC3V PWR Digital power. Connected to 3.3 V
73 MSPWR O MS Card power MOS
74 SMPWR O SM/xD Card power MOS
75 VCC3V PWR Digital power. Connected to 3.3 V
76 SCLK
IO SR, ST SPI - Clock Output
EEPROM – SK
SD – SDD[6]
77 SCEB
IO SR, ST SPI – CEB
EEPROM – CS
SD – SDD[7]
78 SDD[0] IO SR, ST SD card data bus
79 SDD[1] IO SR, ST SD card data bus
80 SDCD I ST SD Card detect pin, low active
81 SDWP I ST SD card write protect, low active
82 RSTB I ST System Reset, Low active
83 XDRDY I SR XD card ready/busy status
CM320
Updateable USB2.0 Card Reader Controlle
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84 XDREB O SR Read enable, low active
85 XDCEB O SR Card enable, low active
86 XDCLE O SR Command latch enable, high active
87 XDALE O SR Address latch enable, high active
88 XDWEB O SR Write enable, low active
89 XDWPB O SR
90 GPIO2 IO SR, ST General Purpose Input Output Pin
91 XDD[0] IO SR, ST XD/SM card data bus
92 XDD[1] IO SR, ST XD/SM card data bus
93 XDD[2] IO SR, ST XD/SM card data bus
94 XDD[3] IO SR, ST XD/SM card data bus
95 XDD[4] IO SR, ST XD/SM card data bus
96 XDD[5] IO SR, ST XD/SM card data bus
97 XDD[6] IO SR, ST XD/SM card data bus
98 MSCLK O SR MS Clock Output
99 MSD[3] IO SR, ST MS card data bus
100 GND PWR Digital Ground pin
CM320S
48
pin # Symbol Type
I/O
Type Description
1 M S CD I ST MS Card detect pin, low active
2 MSD[2] IO SR, ST MS card data bus
3 MSD[0] IO SR, ST MS card data bus
4 MSD[1] IO SR, ST MS card data bus
5 MSBS O SR MS Bus State Output
6 LED
IO SR Card access indicator Led, High
active
7 GPI O 0 IO SR, ST General Purpose Input Output Pin
8 TMODE I ST Chip test mode enable, High active
9 GND PWR Digital Ground pin
10 VCC3V PWR Digital power. Connected to 3.3 V
11 SDPWR O SD Card power MOS
12 NC Not Connected Pin
13 NC Not Connected Pin
CM320
Updateable USB2.0 Card Reader Controlle
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Date: 5/3/2006 Version: 1.0
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14 XSCI
I Analog input. Crystal oscillator
input 12M
15 XSCO
O Analog output. Crystal oscillator
output 12M
16 VCCHST
PWR Analog power pin. Connected to
3.3V power
17 GND_U20 PWR Analog ground
18 RREF
I Analog input.
Connects external reference
resistor (12.1k +- 1%) to
Analog GND
19 DM
IO Bidirection pin, USB 2.0 data in
data negative pin terminal
20 DP
IO Bidirection pin, USB 2.0 data in
data positive pin terminal
21 VCCA
PWR PHY power in for analog.
Connected to 3.3V
22 GNDA PWR Analog Ground pin
23 GND PWR Digital Ground pin
24 VCC5V(I) I 5V input of 5-> 3.3V regulator
25 VCC3V(O) O 3V output of 5-> 3.3V regulator
26 VCC2.5V(O) O 2.5V output of 3.3->2.5V regulator
27 GND(O) PWR Digital Ground pin
28 SDD[2] IO SR, ST SD card data bus
29 SDD[3] IO SR, ST SD card data bus
30 SDO
IO SR, ST SPI - Data Output
EEPROM – DI
SD - SDD[4]
31 SDCMD IO SR, ST SD card command bus
32 SDI
IO SR, ST SPI - Data Input
EEPROM – DO
SD - SDD[5]
33 SDCLK O SR SD card clock
34 GPIO13 IO ST Bonding option
35 VCC3V PWR Digital power. Connected to 3.3 V
CM320
Updateable USB2.0 Card Reader Controlle
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Date: 5/3/2006 Version: 1.0
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36 MSPWR O MS Card power MOS
37 SCLK
IO SR, ST SPI - Clock Output
EEPROM – SK
SD – SDD[6]
38 SCEB
IO SR, ST SPI – CEB
EEPROM – CS
SD – SDD[7]
39 SDD[0] IO SR, ST SD card data bus
40 SDD[1] IO SR, ST SD card data bus
41 SDCD I ST SD Card detect pin, low active
42 SDWP I ST SD card write protect, low active
43 RSTB I ST System Reset, Low active
44 GPIO2 IO SR, ST General Purpose Input Output Pin
45 MSCLK O SR MS Clock Output
46 MSD[3] IO SR, ST MS card data bus
47 GND PWR Digital Ground pin
48 VCC3V PWR Digital power. Connected to 3.3 V
Output driving Capability is 8mA
Note
1. I: input
2. O: output
3. PWR: power/ground pin
4. SR: Slew Rate control
5. ST: Smith Trigger
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Updateable USB2.0 Card Reader Controlle
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5.ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
SYMBOL PARAMETER RATING UNITS
VCC Power Supply -0.3 to VCC+0.3 V
VIN3 Input Voltage of 3.3V I/O -0.3 to 4.0 V
TSTG Storage Temperature -40 to 150 ℃
Recommended Operating Conditions
SYMBOL PARAMETER MIN TYP MAX UNITS
VCCK Core Power Supply 2.25 2.5 2.75 V
VCC3V Power Supply 3.3V I/O 3.0 3.3 3.6 V
VIN Input Voltage of 3.3V I/O 0 3.3 3.6 V
Tj
Commercial Junction Operating
Temperature 0 115 ℃
DC Characteristcs of 3.3V I/O cells
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V25 Regulator output voltage VCC=3.3V 2.2 2.5 2.7 V
V25Iload Regulator driving current VCC=3.3V 150 mA
VIL Input Low Voltage 0.8 V
VIH Input High Voltage
LVTTL
2.0 V
Vt- Schmitt Trigger Negative Going
Threshold Voltage 0.8 1.1 V
Vt+ Schmitt Trigger Positive Going
Threshold Voltage
LVTTL
1.6 2.0 V
VOL Output Low Voltage I∣OL =2 ~ 16mA∣ 0.4 V
VOH Output High Voltage I∣OH =2 ~ 16mA∣ 2.4 V
Rpu Input Pull-Up Resistance PU=high,PD=low 40 75 190 KΩ
Rpd Input Pull-Down Resistance PU=low,PD=high 40 75 190 KΩ
IIL Input Leakage Current Vin=VCC3I or 0 -10 ±1 10 µA
IOZ Tri-state Out Leakage Current -10 ±1 10 µA
IOP Operating current (without card) 48 mA
ISTBY Standby current 320 µA
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Updateable USB2.0 Card Reader Controlle
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6. MECHANICAL DIMENSIONS
Outline of Dimensions
Dimensions shown in inches and mm
100 Pin QFP for CM320L
CM320
Updateable USB2.0 Card Reader Controlle
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Date: 5/3/2006 Version: 1.0
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Figure 6-1：Mechanical Dimension of CM320L (QFP100)
CM320
Updateable USB2.0 Card Reader Controlle
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48 Pin LQFP for CM320S
CM320
Updateable USB2.0 Card Reader Controlle
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Date: 5/3/2006 Version: 1.0
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Figure 6-2：Mechanical Dimension of CM320S (LQFP48)
CM320
Updateable USB2.0 Card Reader Controlle
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Date: 5/3/2006 Version: 1.0
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7. ERRATA
Revision History
2005.1.13 Version 0.90 Preliminary version
2005.5.3 Add Operating and Standby current
－End of Documentation－
C-MEDIA ELECTRONICS INC.
6F., 100, Sec. 4, Civil Boulevard, Taipei, Taiwan 106 R.O.C.
TEL:886-2-8773-1100
FAX:886-2-8773-2211
E-mail：sales@cmedia.com.tw URL：http://www.cmedia.com.tw
