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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)： | 12/36頁 |
| 文件大?。?/td> | 156K |
| 代理商： | VT83C469 |
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VIA Technologies, Inc.
Interrupt Register ( Read/Write )
Address
: Index ( Base + 03h )
Preliminary
VT83C469
12
B
IT
F
UNCTION
D7
Ring Indicate Enable.
0: For I/O PC Card, the STSCHG/RI# signal from card is used as the status change signal
STSCHG#. The current status of this signal is then available to be read from the interrupt status
register and this signal can be configured as a source for the card status change interrupt.
1: For I/O PC Card, the STSCHG/RI# signal from card is used as ring indicator signal and is
passed through to the IRQ15(multi pin, set Misc Control 2 bit 7 to one is used as RI_OUT#). The
ring indicate enable bit has no function when the PC Card type bit is set to zero ( memory card).
PC Card Reset
This is a software reset to PC Card.
0: Activates the RESET to the PC Card. The RESET signal will be active until bit is set to one.
1: Deactivates the RESET signal to the PC Card.
PC Card Type.
0: Memory PC Card.
1: I/O PC Card.
INTR# Enable.
0: The INTR# does not indicate a card status change interrupt is steered to one of the IRQs lines
according to bit 7:4 in the card status change interrupt configuration register.
1: Enable the card status change interrupt on the INTR# signal.
IRQ Level Selection ( I/O Cards Only ).
Refer to following table is the redirection of the PC Card interrupt according to these bits.
D6
D5
D4
D[3:0]
IRQ
BIT
3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
IRQ
BIT
2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
IRQ
BIT
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
IRQ
BIT
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
I
NTERRUPT
R
EQUEST
L
EVEL
IRQ not select
Reserved
Reserved
IRQ3 enable
IRQ4 enable
IRQ5 enable
Reserved
IRQ7 enable
Reserved
IRQ9 enable
IRQ10 enable
IRQ11 enable
IRQ12 enable
Reserved
IRQ14 enable
IRQ15 enable
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