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參數資料
型號: W83977TF
廠商: WINBOND ELECTRONICS CORP
英文描述: Multi-Function I/O Port Controller(用于個人計算機的多功能輸入/輸出口控制器)
中文描述: 多功能I / O端口控制器(用于個人計算機的多功能輸入/輸出口控制器)
文件頁數: 14/160頁
文件大小: 1012K
代理商: W83977TF
W83977TF
PRELIMINARY
Publication Release Date: April 1998
-6-
Revision 0.62
1.1 Host Interface, continued
SYMBOL
PIN
I/O
FUNCTION
DACK0
GP16
(WDTO)
119
IN
tsu
DMA Channel 0 Acknowledge signal. (CR2C bit 5_4 = 00, default)
I/O
12t
General purpose I/O port 1bit 6. (CR2C bit 5_4 = 01)
Alternate function from GP16: Watch dog timer output
KBC P15 I/O port. (CR2C bit 5_4 = 10)
P15
I/O
12t
DRQ0
GP17
(PLEDO)
121
OUT
12t
I/O
12t
DMA Channel 0 request signal. (CR2C bit 7_6 = 00, default)
General purpose I/O port 1bit 7. (CR2C bit 7_6 = 01)
Alternate Function from GP17: Power LED output.
KBC P14 I/O port (CR2C bit 7_6 = 10)
P14
I/O
12t
OUT
12t
SCI
System Control Interrupt (CR2C bit 7_6 = 11)
DACK1
DRQ1
122
IN
ts
DMA Channel 1 Acknowledge signal
123
OUT
12t
IN
ts
DMA Channel 1 request signal
DACK2
DRQ2
124
DMA Channel 2 Acknowledge signal
125
OUT
12t
IN
ts
DMA Channel 2 request signal
DACK3
126
DMA Channel 3 Acknowledge signal
DRQ3
127
OUT
12t
IN
ts
DMA Channel 3 request signal
TC
128
Terminal Count. When active, this pin indicates termination of a
DMA transfer.
IRQ1
99
OUT
12t
OUT
12t
OUT
12t
OUT
12t
OUT
12t
OUT
12t
OUT
12t
OUT
12t
OUT
12t
OUT
12t
OUT
12t
Interrupt request 1
IRQ3
98
Interrupt request 3
IRQ4
97
Interrupt request 4
IRQ5
96
Interrupt request 5
IRQ6
95
Interrupt request 6
IRQ7
94
Interrupt request 7
IRQ8
93
Interrupt request 8
IRQ9
92
Interrupt request 9
IRQ10
100
Interrupt request 10
IRQ11
101
Interrupt request 11
IRQ12
102
Interrupt request 12
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