SBC82400 ISA Half-Size CPU Board Series User’s Manual
Jumpers and Connectors
8
2.3 Jumper
Settings
The
SBC82400
is configured to match the needs of the
application with the proper jumper settings.
The table below is a summary of all the jumpers and their
default settings for the onboard devices.
Jumper Description
Jumper
Setting
JP1
CUP CLK SPEED Default: 66MHz
Short 1-2
JP2
CUP CLK SPEED Default: 66MHz
Short 1-2
JP7
CUP CLK SPEED Default: 66MHz
Short 2-3
JP8
CUP CLK SPEED Default: 66MHz
Short 2-3
JP3
CPUCLK is HCLK x1 or x2 Default: x2
Short 1-2
JP12
CPUCLK is HCLK x1 or x2 Default: x2
Short 1-2
JP4
Reserved
JP5
COM2 12V/+5V Selection
Default: RS232 Signal
Short 7-9,8-10
JP6
COM1 12V/+5V Selection
Default: RS232 Signal
Short 7-9,8-10
JP9
COM2 RS-232/422/485 Selection
Default: RS-232
Short 1-2
JP10
COM2 RS-232/422/485 Selection
Default: RS-232
Short 3-5,4-6
JP11
COM2 RS-232/422/485 Selection
Default: RS-232
Short 3-5,4-6
JP13
Clear CMOS Jumper
Default: Normal
Short 1-2
JP14
Compact Flash Voltage Selection
Default: 5V
Short 1-2
JP15
Compact Flash Master/Slave Selection
Default: Slave
Open
JP17
DiskOnChip
Memory Segment Setting
Default: D0000 – D1FFF
Short 1-2, 3-4
JP18
Watchdog Trigger Mode: Disabled
Open
