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參數(shù)資料
| 型號： | CM220 |
| 廠商： | C-Media Electronics Inc. |
| 英文描述： | Updateable USB2.0 Card Reader Controller |
| 中文描述： | 更新的USB2.0接口讀卡器控制器 |
| 文件頁數(shù)： | 17/19頁 |
| 文件大?。?/td> | 260K |
| 代理商： | CM220 |
CM220
Updateable USB2.0 Card Reader Controller
Date: 8/2/2005
Version:
1.4
- 7 -
4. PIN DESCRIPTIONS & ASSIGNMENT
48
Pin#
100
pin #
128
pin #
Symbol
I/O Type
Description
NC
2
1
XDCD
DI, PU
XD Card detect pin, low active
NC
3
2
SMCD
DI, PU
SM Card detect pin, low active
NC
4
3
SMCEB
DO
SM card enable, low active
10
5
4
SMWP
DI, PU
SM card write protect, low active
11
6
5
TMODE
DI, PD
Chip test mode enable, High active
NC
6
GPIO1
DI
General Purpose Input Output
NC
7
CFLED
DO
CF Card access indicator Led, High active
NC
8
VCC3V(O)
Digital power. Connected to 3.3 V
NC
9
GND(O)
Digital Ground pin
NC
7
10
CFPWR
DO
CF Card power control, low active
NC
8
11
CFD[3]
DIO, PD
CF card data bus
NC
9
12
CFD[11]
DIO, PD
CF card data bus
NC
10
13
CFD[4]
DIO, PD
CF card data bus
NC
11
14
CFD[12]
DIO, PD
CF card data bus
NC
12
15
CFD[5]
DIO, PD
CF card data bus
NC
13
16
CFD[13]
DIO, PD
CF card data bus
NC
14
17
CFD[6]
DIO, PD
CF card data bus
NC
15
18
CFD[14]
DIO, PD
CF card data bus
NC
16
19
CFD[7]
DIO, PD
CF card data bus
12
17
20
VCC3V(O)
Digital power. Connected to 3.3 V
NC
18
21
GND(O)
Digital Ground pin
NC
19
22
CFD[15]
DIO, PD
CF card data bus
NC
20
23
CFCS0
DO,
CF card select 0
NC
21
24
CFCS1
DO,
CF card select 1
NC
22
25
CFIOR
DO,
CF card read enable, low active
NC
23
26
CFIOW
DO,
CF card write enable, low active
NC
24
27
CFRST
DO,
CF card reset, low active
NC
25
28
CFSA[2]
DO,
CF card address bus
NC
26
29
CFSA[1]
DO,
CF card address bus
NC
27
30
CFSA[0]
DO,
CF card address bus
NC
28
31
CFD[0]
DIO, PD
CF card data bus
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