ADLINK Technology cPCI-6810, User Manual

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66 Appendix
WDT Setup Instructions
1. Set pin 55 of PC87417 as Watch Dog Timer output pin
X
Set Bit 7 of SIOCF2 Register (Index: 22H) to 1, for example:
Z
o 2E 22
Z
o 2F 80
2. Set Logic Device to System Wake-Up Control (SWC)
X
Set Logic Device Number Register (Index: 07H) to 04H, for
example:
Z
o 2E 07
Z
o 2F 04
3. Enable Logic Device Control
X
Set Logic Device Control Register (Index: 30H) to 01H, for
example:
Z
o 2E 30
Z
o 2F 01
4. Get I/O Base Address (MSB) of SWC
X
Get SWC base address MSB from 60H, for example:
Z
o 2E 60
Z
i 2F
Z
08 -> BIOS default value
5. Get I/O Base Address (LSB) of SWC
X
Get SWC base address MSB from 61H, for example:
Z
o 2E 61
Z
i 2F
Z
40 -> BIOS default value
(The I/O Base Address of SWC BIOS set is 840H)