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參數(shù)資料
| 型號： | VT83C469 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | PCMCIA Socket Controller |
| 中文描述： | PCMCIA插槽控制器 |
| 文件頁數(shù)： | 19/36頁 |
| 文件大?。?/td> | 156K |
| 代理商： | VT83C469 |
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VIA Technologies, Inc.
Preliminary
VT83C469
19
System Memory Address Mapping Offset High Byte Register ( Read/Write )
Address
: Window 0 Index ( Base + 15h )
Address
: Window 1 Index ( Base + 1Dh )
Address
: Window 2 Index ( Base + 25h )
Address
: Window 3 Index ( Base + 2Dh )
Address
: Window 4 Index ( Base + 35h )
B
IT
F
UNCTION
D7
Write Protect.
0: Write operations to PC Card through the corresponding system memory window are allowed.
1: Write operations to PC Card through the corresponding system memory window are inhibited.
REG Active.
0: Access to the system memory will result in common memory space.
1: Access to the system memory will result in attribute memory space.
Card Memory Offset Address A25:20.
High order address bits which are added to the system address A23:20 to generate card address.
D6
D[5:0]
E
XTENSION
R
EGISTERS
Misc. Control 1 Register ( Read/Write )
Address
: Index ( Base + 16h )
B
IT
F
UNCTION
D7
Inpack Support.
0: Inpack not support.
1: Inpack used to control data bus drivers during I/O read from the PC Card.
Reserved
Speaker Enable.
0: SPKCSEL# is tri-state.
1: SPKCSEL# is driven form the XOR of SPKR# from each enabled PC Card.
Reserved
V
3v. This bit dtermines which output pin is to be used to enable V
power to be the socket
when card power is to be applied. It is used in conjunction with bits 5-4 of the Power Control
register. When this bit is "1," the 3.3v V
CC
is applied to the PC card. When this bit is "0," 3.3v or
5v V
CC
is determined by the DET_5 pin.
This bit is connected to PCMCIA pin 43. Cards that will operate at 3.3v will drive this pin to a "0."
D[6:5]
D4
D[3:2]
D1
D0
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