22
3.1.3 J16-2 (+12V to J5-pin D1).
Installing this jumper will c12V to the CompactPCI connector J5, pin D1. This is only to be used
for specially designed RTM cards that may need it. The default is for no jumper.
J16-2
Function
Open
Default
CPCI J5-pin D1 is a no connect.
Closed
CPCI J5-pin D1 is shorted to +12V.
3.1.4 J16-3 (+5V PMC I/O)
Installing this jumper sets the 32bit/33Mhz PMC site’s VI/O voltage to +5V. Having no jumper sets the
VI/O voltage to 3.3V. The 32bit/33Mhz PMC site is located on the bottom edge of the board, closest to
the jumpers.
WARNING:
The voltage key for the 32bit/33Mhz PMC site must be set to match this jumper setting.
Not placing the voltage key, placing the voltage key at the wrong location, or using a PMC card that is not
tolerant of the set voltage may damage the PMC card and/or the cPB-4612 board.
J16-3
CMOS Real Time Clock
Open
Default
32bit/33Mhz PMC site set to 3.3V.
Closed
32/bit/33Mhz PMC site set to 5V.
3.1.5 J16-4 (IMPI Disable)
This is for debug use only. Placing this jumper will disable the IMPI controller. This should only be used
by the manufacturer.
J16-4
CMOS Real Time Clock
Open Default
Normal
Operation
Closed
IMPI controller disabled
3.1.6
J17-1 (Not Used)
Not used
J17-1
Function
Open Default
Not
used
Closed
Not
used
3.1.7 J17-2 (CMOS Clear)
Installing this jumper will reset the CMOS settings to their default values.
J17-2
Function
Open
Default
Normal operation
Closed
Clears CMOS and sets registers to their default state.
