W83977ATF Datasheet, PDF (8/207 Pages) Winbond – WINBOND I/O

W83977ATF
PRELIMINARY
1.1 Host Interface, continued
SYMBOL PIN
DACK0
119
GP16
(WDTO)
P15
DRQ0
121
GP17
(PLEDO)
P14
SCI
DACK1
122
DRQ1
123
DACK2
124
DRQ2
125
DACK3
126
DRQ3
127
TC
128
IRQ1
99
IRQ1
IRQ3
98
GP31
IRQ4
97
GP32
IRQ5
96
GP33
I/O
IN_tsu
I/O_12t
I/O_12t
OUT_12t
I/O_12t
I/O_12t
OD₁₂
IN_ts
OUT_12t
IN_ts
OUT_12t
IN_ts
OUT_12t
IN_ts
OUT_12t
I/O_12t
OUT_12t
I/O_12t
OUT_12t
I/O_12t
OUT_12t
I/O_12t
FUNCTION
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, SCI is driven low by the
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)
Publication Release Date: April 1998
-7 -
Revision 0.52