Jumpers 13, Cpu fre quency set ting (jp3) 13, Cpu mul ti plier set ting (jp8) 13 – Intel SBC-370 User Manual
Page 11: Watch dog timer type set ting (jp5) 13, Cpu fre quency set ting 13, Cpu mul ti plier set ting 13, Watch dog timer type set ting 13, Jump ers 13, Jumpers, Cpu frequency setting (jp3)
JUMPERS
The default settings are highlighted in the tables that follow.
CPU Frequency Setting (JP3)
Frequency
1-3
2-4
3-5
4-6
50 MHz
OFF
OFF
ON
ON
66 MHz/100 MHz*
ON
ON
OFF
OFF
75 MHz
OFF
ON
ON
OFF
83.3 MHz
ON
OFF
OFF
ON
*Intel Celeron CPU will auto-detect 66 MHz.
* Intel Pentium III (FC-PGA) CPU will auto detect 100MHz.
*Refer to figure 2 for the location of JP3.
CPU Multiplier Setting (JP8)
Ration
1-2
3-4
5-6
7-8
3.0 x
ON
OFF
ON
ON
3.5 x
ON
OFF
OFF
ON
4.0 x
OFF
ON
ON
ON
4.5 x
OFF
ON
OFF
ON
5.0 x
OFF
OFF
ON
ON
5.5 x
OFF
OFF
OFF
ON
6.0 x
ON
ON
ON
OFF
6.5 x
ON
ON
OFF
OFF
7x
ON
OFF
ON
OFF
7.5x
ON
OFF
OFF
OFF
8x
OFF
ON
ON
OFF
Refer to figure 2 for the location of JP8.
Watchdog Timer Type Setting (JP5)
The Watchdog Timer is enabled by reading port 443H. It should be triggered be-
fore the timeout 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
Watchdog Timer is disabled by reading port 043H.
Pin Number
Description
1-2
NMI
2-3
RESET
Refer to figure 2 for the location of JP5.
Board Configuration
13