w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 8
w83977atf
Manufacturer Part Number
w83977atf
Description
Winbond I/o
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977ATF.pdf
(207 pages)
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1.1 Host Interface, continued
GP16
(WDTO)
P15
DRQ0
GP17
(PLEDO)
P14
DRQ1
DRQ2
DRQ3
TC
IRQ1
IRQ1
IRQ3
GP31
IRQ4
GP32
IRQ5
GP33
DACK0
DACK1
DACK2
DACK3
SCI
SYMBOL
PIN
119
121
122
123
124
125
126
127
128
99
98
97
96
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
OD
IN
IN
IN
IN
IN
I/O
tsu
12t
12t
12t
12t
ts
ts
ts
ts
12t
12t
12t
12t
12
12t
12t
12t
12t
12t
12t
12t
12t
DMA Channel 0 Acknowledge signal. (CR2C bit 5_4 = 00,
default)
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)
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)
System Control Interrupt.(CR2C bit 7_6 = 11)
In the ACPI power management mode,
power management events.
DMA Channel 1 Acknowledge signal .
DMA Channel 1 request signal.
DMA Channel 2 Acknowledge signal.
DMA Channel 2 request signal.
DMA Channel 3 Acknowledge signal.
DMA Channel 3 request signal.
Terminal Count. When active, this pin indicates termination of a
DMA transfer.
Interrupt request 1. (Logical device 9, CRF1 bit 2 = 0)
General purpose I/O port 3 bit 0.
(Logical device 9, CRF1 bit 2 = 1)
Interrupt request 3. (Logical device 9, CRF1 bit 2 = 0)
General purpose I/O port 3 bit 1.
(Logical device 9, CRF1 bit 2 = 1)
Interrupt request 4. (Logical device 9, CRF1 bit 2 = 0)
General purpose I/O port 3 bit 2.
(Logical device 9, CRF1 bit 2 = 1)
Interrupt request 5. (Logical device 9, CRF1 bit 2 = 0)
General purpose I/O port 3 bit 3.
(Logical device 9, CRF1 bit 2 = 1)
-7 -
FUNCTION
Publication Release Date: April 1998
SCI
W83977ATF
PRELIMINARY
is driven low by the
Revision 0.52
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