W83627DHG-PT Nuvoton Technology Corporation of America, W83627DHG-PT Datasheet - Page 222

• Manufacturer Part Number: W83627DHG-PT
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG-PT

• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

CR F6h. (WDTO# Counter Register; Default 00h)
CR F7h. (WDTO# Control & Status Register; Default 00h)
7~0
3~0
BIT
BIT
7
6
5
4
READ / WRITE
READ / WRITE
Write “0” Clear
Write “1” Only
R / W
R / W
R / W
R / W
R / W
Watch Dog Timer Time-out value. Writing a non-zero value to this
register causes the counter to load the value into the Watch Dog
Counter and start counting down. If CR F7h, bits 7 and 6 are set, any
Mouse Interrupt or Keyboard Interrupt event causes the previously-
loaded, non-zero value to be reloaded to the Watch Dog Counter and
the count down resumes. Reading this register returns the current
value in the Watch Dog Counter, not the Watch Dog Timer Time-out
value.
00h: Time-out Disable
01h: Time-out occurs after 1 minute only.
02h: Time-out occurs after 2 second/minutes
03h: Time-out occurs after 3 second/minutes
……………………….......................................
FFh: Time-out occurs after 255 second/minutes
(The deviation is approx 1 second.)
Mouse interrupt reset enables watch-dog timer reload
0: Watchdog timer is not affected by mouse interrupt.
1: Watchdog timer is reset by mouse interrupt.
Keyboard interrupt reset enables watch-dog timer reload
0: Watchdog timer is not affected by keyboard interrupt.
1: Watchdog timer is reset by keyboard interrupt.
Trigger WDTO# event. This bit is self-clearing.
WDTO# status bit
0: Watchdog timer is running.
1: Watchdog timer issues time-out event.
These bits select the IRQ resource for the WDTO#. (02h for SMI# event.)
W83627DHG-P/W83627DHG-PT
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DESCRIPTION
DESCRIPTION
Publication Release Date: July 09, 2009
Version 1.94