參數(shù)資料
型號: CM320
廠商: C-Media Electronics Inc.
英文描述: USB2.0 Card Reader Controller
中文描述: 個USB2.0讀卡機控制
文件頁數(shù): 6/21頁
文件大?。?/td> 363K
代理商: CM320
CM320
Updateable USB2.0 Card Reader Controller
Date: 5/3/2006
Version:
1.0
- 14 -
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
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