12
2.6 DiskOnChip™ Flash Disk
The DiskOnChip™ (DOC) Flash Disk Chip is produced by M-
Systems. Customers don‘t need any extra software utility because
the DOC is 100% compatible to hard disk. It is just “plug and play”,
easy and reliable. Right now, the DOC is available from 2MB to
144MB.
•
JP4 : DiskOnChip
™
Memory Address Setting
PIN NO.
ADDRESS
1-2
CE00H
3-4
D600H
5-6
DE00H
2.7 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 reboot or activate NMI to CPU. The Watch-Dog Timer is
disable by reading port 843H
.
•
JP11 : Watch-Dog Timer Type Setting
PIN NO.
DESCRIPTION
1-2
NMI
2-3
RESET
OPEN
Disable WDT
•
JP16 : 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
Содержание POS 566
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