W83627EHF Datasheet, PDF (116/141 Pages) Winbond – evolving product from Winbonds most popular I/O family

W83627EHF/EF, W83627EHG/EG
CR F6h. (WDTO# counter register; Default 00h)
BIT READ / WRITE
DESCRIPTION
Watch Dog Timer Time-out value. Writing a non-zero value to this
register causes the counter to load the value to Watch Dog Counter
and start counting down. If the bit 7 and 6 of CR F7h are set, any
Mouse Interrupt or Keyboard Interrupt event will also cause the
reload of previously-loaded non-zero value to Watch Dog Counter
and start counting down. Reading this register returns current value
in Watch Dog Counter instead of Watch Dog Timer Time-out value.
7~0
R/W
00h: Time-out Disable
01h: Time-out occurs after 1 second/minute
02h: Time-out occurs after 2 second/minutes
03h: Time-out occurs after 3 second/minutes
……………………….......................................
FFh: Time-out occurs after 255 second/minutes
CR F7h. (WDTO# control & status register; Default 00h)
BIT READ / WRITE
DESCRIPTION
Mouse interrupt reset watch-dog timer enable
7
R/W
0: Watchdog timer is not affected by mouse interrupt.
1: Watchdog timer is reset by mouse interrupt.
Keyboard interrupt reset watch-dog timer enable
6
R/W
0: Watchdog timer is not affected by keyboard interrupt.
1: Watchdog timer is reset by keyboard interrupt.
5 Write “1” Only Trigger WDTO# event. This bit is self-clearing.
WDTO# status bit
4
R/W
0: Watchdog timer is running.
1: Watchdog timer issues time-out event.
3~0
R/W
These bits select IRQ resource for WDTO#. (02h for SMI# event.)
7.10 Logical Device 9 (GPIO2,GPIO3, GPIO4, GPIO5 & SUSLED) (VSB Power)
CR 30h. (Default 00h)
BIT READ / WRITE
7~4 Reserved.
3
R/W
0: GPIO5 is inactive.
2
R/W
0: GPIO4 is inactive.
1
R/W
0: GPIO3 is inactive.
0
R/W
0: GPIO2 is inactive.
DESCRIPTION
1: Activate GPIO5
1: Activate GPIO4.
1: Activate GPIO3.
1: Activate GPIO2.
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