W83977F Datasheet, PDF (18/181 Pages) Winbond – PLUG & PLAY 1.0A COMPLIANT

W83977F/ W83977AF
PRELIMINARY
1.1 Host Interface, continued
SYMBOL PIN
DACK0
119
GP16
(WDTO)
P15
RTSC
DRQ0
121
GP17
(PLEDO)
P14
DTRC
DACK1
122
DRQ1
123
DACK2
124
DRQ2
125
DACK3
126
DRQ3
127
TC
128
IRQ1
99
IRQ3
98
IRQ4
97
IRQ5
96
IRQ6
95
IRQ7
94
IRQ8/ nIRQ8 93
IRQ9
92
IRQ10
100
IRQ11
101
IRQ12
102
I/O
IN_ts
I/O_12t
I/O_12t
OUT_12t
OUT_12t
I/O_12t
I/O_12t
OUT_12t
IN_ts
OUT_12t
IN_ts
OUT_12t
IN_ts
OUT_12t
IN_ts
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
OUT_12t
FUNCTION
CR2C bit5, 4= 00 (default): DMA Channel 0 Acknowledge
signal.
CR2C bit5, 4= 01: General purpose I/O port 1 bit 6. It can be
configured as a watchdog timer output.
CR2C bit5, 4= 10: Keyboard P15 I/O port.
CR2C bit5, 4= 11: RTS output of UART C. [W83977AF only]
CR2C bit7, 6= 00 (default): DMA Channel 0 request signal.
CR2C bit7, 6= 01: General purpose I/O port 1, bit 7. It can be
configured as power LED output.
CR2C bit7, 6= 10: Keyboard P14 I/O port.
CR2C bit7, 6= 11: DTR output of UART C. [W83977AF only]
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
Interrupt request 3
Interrupt request 4
Interrupt request 5
Interrupt request 6
Interrupt request 7
Interrupt request 8; default is nIRQ8 for RTC
Interrupt request 9
Interrupt request 10
Interrupt request 11
Interrupt request 12
Publication Release Date: March 1998
-7 -
Revision 0.58