Specifications

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card and also let the screen blank.
PM Timers :
User can set the HDD Power Down,Doze Mode,Standby Mode,
and Suspend Mode‘ s time out period. The system will be
recovered when the system is re-activity.
PM Events :
If there is any activity occured on the list of the group,the
system will wake up. You can set the IRQ1,IRQ3-15
individually in the list.
Appendix A. Watch-Dog Timer
The Watch-Dog Timer is provided to ensure that standalone
systems can always recover from catastrophic conditions that
caused the CPU to crash. This condition may have occurred by
external EMI or a software bug. When the CPU stops working
correctly, hardware on the board will either perform a hardware
reset (cold boot) or a non-maskable interrupt (NMI) to bring the
system back to a known state.
The Watch-Dog Timer is controlled by two I/O ports.
443
(hex)
Read Enable the refresh the Watch-Dog Timer.
043
(hex)
Read Disable the Watch-Dog Timer.
To enable the Watch-Dog Timer, a read from I/O port 443H must
be performed. This will enable and activate the countdown timer
which will eventually time out and either reset the CPU or cause an
NMI depending on the setting of JP15. To ensure that this reset
condition does not occur, the Watch-Dog Timer must be
periodically refreshed by reading the same I/O port 433H. This
must be done within the time out period that is selected by jumper
group JP16.
A tolerance of at least 30% must be maintained to avoid unknown
routines within the operating system (DOS), such as disk I/O that
can be very time consuming. Therefore if the time out period has