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2.3 Setting the CPU of ROCKY-3702EV
• JP3 : CPU FREQUENCY SETTING
FREQUENCY
66MHz/100MHz
Note: Intel Celeron CPU will auto-detect 66MHz/100MHz
Intel Pentium III ( FC-PGA ) CPU will auto-detect 100MHz
• JP8 : CPU MULTIPLIER SETTING
Ratio
1-2
3.0 x
ON
3.5 x
ON
4.0 x
OFF
4.5 x
OFF
5.0 x
OFF
5.5x
OFF
6.0x
ON
6.5x
ON
7x
ON
7.5x
ON
8x
OFF
2.4 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 that 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 043H.
• JP5 : Watch-Dog Timer Type Setting
PIN NO.
1-2
2-3
JP3
1-3
2-4
ON
ON
3-4
5-6
7-8
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
ON
OFF
ON
OFF
ON
ON
OFF
OFF
ON
ON
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
DESCRIPTION
NMI
RESET
11
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