CM320 C-Media Electronics, CM320 Datasheet - Page 14

• Manufacturer Part Number: CM320
• Description: USB2.0 Card Reader Controller
• Manufacturer: C-Media Electronics

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Date: 5/3/2006
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VCC2.5V(O)
VCC3V(O)
GND_U20
VCC5V(I)
VCCHST
GND(O)
SDCMD
SDCLK
GPIO13
VCC3V
SDD[2]
SDD[3]
VCCA
GNDA
XSCO
RREF
XSCI
GND
SDO
DM
SDI
DP
PWR
PWR
PWR
PWR
PWR
PWR
PWR
IO
IO
IO
IO
IO
IO
IO
IO
O
O
O
O
I
I
I
SR, ST
SR, ST
SR, ST
SR, ST
SR, ST
SR
ST
2.5V output of 3.3->2.5V regulator
Digital power. Connected to 3.3 V
Analog output. Crystal oscillator
Analog power pin. Connected to
Bidirection pin, USB 2.0 data in
Bidirection pin, USB 2.0 data in
3V output of 5-> 3.3V regulator
Analog input. Crystal oscillator
5V input of 5-> 3.3V regulator
Connects external reference
data negative pin terminal
PHY power in for analog.
data positive pin terminal
resistor (12.1k +- 1%) to
SD card command bus
Analog Ground pin
Digital Ground pin
Digital Ground pin
Connected to 3.3V
SPI - Data Output
SD card data bus
SD card data bus
SPI - Data Input
EEPROM – DO
Bonding option
Analog ground
EEPROM – DI
SD card clock
Analog input.
Analog GND
SD - SDD[4]
SD - SDD[5]
output 12M
3.3V power
input 12M
Updateable USB2.0 Card Reader Controller
- 14 -
Version: 1.0
CM320