Watchdog Timer
63
MI-110
Appendix A - Watchdog Timer
The programming instructions for the MI-110’s Watchdog Timer
are as follows.
A.1 WDT Programming Instructions
Unlock W83627DHG-A:
outportb(0x2E, 0x87)
;Unlock Super I/O
Select Logical Device:
outportb(0x2E, 0x07)
;Select device number register
outportb(0x2F, 0x08)
;Set to Logical Device 8
Activate WDT:
outportb(0x2E, 0x30)
;Select WDTO# activate register
outportb(0x2F, 0x01)
;Enable watchdog
Set Seconds or Minutes:
outportb(0x2E, 0xF5)
;Select WDTO# control register
outportb(0x2F, mode)
;where mode=0x00(Sec) or 0x08(Min)
Set base timer:
outportb(0x2E, 0xF6)
;Select WDTO# counter register
outportb(0x2F, timeout) ;where timeout=0x00~0xFF
Reset timeout counter:
outportb(0x2E, 0xF6)
;Select WDTO# counter register
outportb(0x2F, timeout) ;where timeout=0x00~0xFF}
Содержание MI-110
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Страница 24: ...12 Introduction 1 9 Mechanical Dimensions Figure 1 4 MI 110 Board Dimensions Dimensions in mm ...
Страница 25: ...Introduction 13 MI 110 Figure 1 5 Rear I O Faceplate Dimensions Dimensions in mm ...
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