W83627DHG Nuvoton Technology Corporation of America, W83627DHG Datasheet - Page 209

• Manufacturer Part Number: W83627DHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS 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 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
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.)
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DESCRIPTION
DESCRIPTION
Publication Release Date: Aug, 22, 2007
W83627DHG
Version 1.4