11
2.6 Watch-Dog Timer
The Watch-Dog Timer is enabled by reading port 443H. It should
be triggered before the time-out period ends, otherwise it will
assume the program operation is abnormal and will issue a reset
signal to start again or activate NMI to CPU. The Watch-Dog
Timer is disable by reading port 043H.
•
JP10 : Watch-Dog Active Type Setting
PIN NO.
DESCRIPTION
2-3
RESET WHEN WDT TIME-OUT
1-2
ACTIVATE NMI TO CPU WHEN WDT TIME-OUT
OPEN
DISABLE WDT
•
JP9 : WDT Time-Out Period
PERIOD
1-2
3-4
5-6
7-8
1 sec.
OFF
OFF
ON
OFF
2 sec.
OFF
OFF
ON
ON
10 sec.
OFF
ON
OFF
OFF
20 sec.
OFF
ON
OFF
ON
110 sec.
ON
OFF
OFF
OFF
220 sec.
ON
OFF
OFF
ON
2.7 DiskOnChip™
Flash Disk
The DOC is software compatible to hard disk and DOS.
Customer doesn‘ t need any extra software utility. It is just “ plug
and play” , easy and reliable. The DOC occupies 8KB of memory
address.
•
JP13 : DiskOnChip Memory Address Setting
Address
JP13
CE000 - CFFFFH
1-2
D6000 - D7FFFH
3-4
DE000 - DFFFFH
5-6