CM220S C-Media Electronics, Inc., CM220S Datasheet - Page 9

• Manufacturer Part Number: CM220S
• Description: Updateable USB2.0 Card Reader Controller
• Manufacturer: C-Media Electronics, Inc.

Date: 8/2/2005
NC
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SCEB
SCLK
RSTB
SDWP
VCC3V(O)
SDD[1]
SDD[0]
SDCLK
SDCMD
SDD[3]
SDD[2]
USBLED
SDPWR
SDCD
GND(CORE)
GND(O)
GND(I)
VCC3V(O)
VCC3V(I)
MSCLK
MSD[3]
MSD[2]
MSD[0]
MSD[1]
MSBS
MSCD
MSPWR
SDO
SDI
SDLED
GPIO3
GND(O)
DO, PU
DO, PU
DIO, PU
DO, PU
DO, PU
DIO, PU
DO, PU
DO, PU
DIO, PU
DI, PU
DI, PU
DIO, PU
DI
DI, PU
DIO, PU
DIO, PU
DO
DIO, PU
DIO, PU
DIO, PU
DO
DO
DO
DI, PU
DIO
DO
DIO, PD
DIO, PD
DIO, PD
DIO, PD
DO
DI, PU
DO
SPI – CEB
EEPROM – CS
SD – SDD[7]
SPI - Clock Output
EEPROM – SK
SD – SDD[6]
SPI - Data Output
EEPROM – DI
SD - SDD[4]
SPI - Data Input
EEPROM – DO
SD - SDD[5]
System Reset, Low active
SD card write protect, low active
Digital power. Connected to 3.3 V
SD card data bus
SD card data bus
SD card clock
SD card command bus
SD card data bus
SD card data bus
USB configuration indicator Led, High
active
SD Card access indicator Led, High active
SD Card power control, low active
SD Card detect pin, low active
General Purpose Input Output
Digital Ground pin
Digital Ground pin
Digital Ground pin
Digital power. Connected to 3.3 V
Digital power. Connected to 3.3 V
MS Clock Output
MS card data bus
MS card data bus
MS card data bus
MS card data bus
MS Bus State Output
MS Card detect pin, low active
MS Card power control, low active
Digital Ground pin
Updateable USB2.0 Card Reader Controller
- 9 -
Version: 1.4
CM220