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Hardware Configuration
SI-642 User Manual
15
2
2.4.1 JBAT1: Clear CMOS
JBAT1
Function
Pin closed
Normal
(Default)
1-2
Clear
CMOS
2-3
2.4.2 JP1: Clear RTC
JP1
Function
Pin closed
Normal
(Default)
1-2
Clear
RTC
2-3
2.4.3 JP2: AT/ATX Mode Selection
JP2
Function
Pin closed
ATX
1-2
AT
2-3
2.4.4 JP3: Flash Descriptor Security Override (Factory use only)
JP3
Pin
Function
Open
Disabled
(Default)
Pin 1-2
Closed
Enabled
1
1
1
1
1
1
1
1