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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(gè)USB2.0讀卡機(jī)控制 |
| 文件頁數(shù)： | 3/21頁 |
| 文件大小： | 363K |
| 代理商： | CM320 |
CM320
Updateable USB2.0 Card Reader Controller
Date: 5/3/2006
Version:
1.0
- 11 -
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
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