3.5DiskOnChip Address Setting
The DiskOnChipTM function allows the system to boot or operate without a FDD or a HDD. DiskOnChipTM modules may be formatted as drive C or A. With DiskOnChipTM, user may also execute DOS commands such as FORMAT, SYS, COPY, XCOPY, DISCOPY and DISKCOMP etc.
The U9 location onboard the
JP11: DiskOnChip Address Select
JP11 | Address |
|
| |
Short | D000 | 2 | 8 | |
Short | D800 | |||
1 | 7 | |||
Short | E000 | |||
|
| |||
Short | E800 |
|
|
3.6Watchdog Timer
There are three access cycles of watchdog timer as Enable, Refresh and Disable. The Enable cycle should proceed by READ PORT 443H. The Disable cycle should proceed by READ PORT 043H. A continue Enable cycle after a first Enable cycle means Refresh.
Once if the Enable cycle activity, a Refresh cycle is request before the
The JP9 is using for select the active function of watchdog timer in disable the watchdog timer, or presetting the watchdog timer activity at the reset trigger, or presetting the watchdog timer activity at the NMI trigger.
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