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參數資料
型號: W83877TF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設及接口
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: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: QFP-100
文件頁數: 16/154頁
文件大小: 821K
代理商: W83877TF
W83877TF
Publication Release Date: March 1998
- 6 -
Version 0.61
1.1 Host Interface, continued
SYMBOL
DRQ_C
PIN
4
I/O
FUNCTION
OUT
12t
IN
ts
DMA request signal C.
DACK_C
18
DMA Acknowledge signal C.
TC
97
IN
ts
Terminal Count. When active, this pin indicates termination of a
DMA transfer.
IRQIN
93
IN
t
Interrupt request input for IRQ routing ; For example , the IRQ12
can be routed into this port when PS/2 mouse is not installed.
IRQ_A
96
OUT
12t
Interrupt request signal A, when CR16 Bit 5 (G1IQSEL) = 0.
GIO1
I/O
12t
OUT
12t
General Purpose I/O port 1, when CR16 Bit 5 (G1IQSEL) = 1.
IRQ_B
92
Interrupt request signal B, when CR16 Bit 4 (G0IQSEL) = 0.
GIO0
I/O
12t
OUT
12t
OUT
12t
OUT
12t
OUT
12t
OUT
12t
IN
t
OUT
12t
I/O
12t
General Purpose I/O port 0, when CR16 Bit 4 (G0IQSEL) = 1.
IRQ_C
44
Interrupt request signal C.
IRQ_D
37
Interrupt request signal D.
IRQ_E
23
Interrupt request signal E.
IRQ_F
IRQ_G
PCICLK
IRQ_H
SERIRQ
99
1
Interrupt request signal F.
Interrupt request signal G.
PCI clock input, when the serial IRQ function is selected.
Interrupt request signal H.
Serial interrupt input/output, when the Serial IRQ mode is
selected by setting IRQMODS bit in CR31 register.
91
SCI
3
OD
12
For the ACPI power management,
SCI
is active low 200ns for
the power management events, which generate an SCI interrupt
in the ACPI mode.
CLKIN
7
IN
t
24MHz/48MHZ clock input. CLKINSEL bit in CR2C register
should be correctly reset/set according to the input frequency.
SMI
8
OD
12
For the legacy power management, the
SMI
is active low 200ns
for the power management events, which generate an SMI
interrupt in the legacy power management mode.
This SMI output is enabled by setting the SMI_EN bit in CR3A
register.
DACK_A
41
IN
ts
DMA acknowledge signal A.
DRQ_A
39
OUT
12t
DMA request signal A.
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