W83877ATF Datasheet, PDF (10/191 Pages) Winbond – enhanced version from Winbonds most popular I/O chip W83877F

W83877ATF
1.1 Host Interface, continued
SYMBOL
PIN
DRQ_C
4
DACK_ C
18
IRQIN
93
DRQ_D
IRSL2
IRRXH/IRSL0
PNF
IRRXH/IRSL0 3
DACK_ D
IRSL1
TC
97
IRQ_ A
96
SCI
GIO1
IRQ_ B
92
GIO0
IRQ_C
44
IRQ_D
37
IRQ_E
23
IRQ_F
99
IRQ_G
1
DRQ_D
IRSL2
PCICLK
I/O
OUT_12t
IN_ts
FUNCTION
DMA request signal C.
DMA acknowledge signal C.
IN_ts
OUT_12t
OUT_12t
I/O_12ts
IN_ts
I/O_12ts
IN_ts
Interrupt request input.
DMA request signal D.
IR module mode selection 2.
When input, acts as a function of high speed IR receiving
terminal. When output selected, acts as a IR module mode
selection 0.
Detects printer is active, and not external FDC. When this pin
PNF is detected to 1 signal, the device is switched to parallel
printer. When this pin PNF is detected to 0 signal, the device is
switched to external FDC. The pin is configured in CR16.bit7
(ENPNF).
When input pin, high speed IR received terminal. When output
pin, IR module mode select 0. Input or output are definied in
high speed IR register.
DMA acknowledge signal for channel D.
OUT_12t
IN_ts
OUT_12t
OUT_12t
IR module mode select 1.
Terminal Count. When active, this pin indicates termination of
a DMA transfer.
When CR16 Bit 5 (GOIQSEL) = 0: Interrupt request signal A.
ACPI interrupt signal, selected by PnP IRQ configure register.
I/O_12t
OUT_12t
I/O_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
IN_t
When CR16 Bit 4 (GOIQSEL) = 1: General Purpose I/O port 1.
When CR16 Bit 4 (GOIQSEL) = 0: Interrupt request signal B.
When CR16 Bit 4 (GOIQSEL) = 1: General Purpose I/O port 0.
Interrupt request signal C.
Interrupt request signal D.
Interrupt request signal E.
Interrupt request signal F.
Interrupt request signal G.
DMA request signal channel D.
IR module mode select 2.
PCI clock input when the serial IRQ function is selected.
Publication Release Date: April 1998
-6-
Version 0.51