Computer Hardware User Manual

4 Connector Pin Assignments
PrPMC800/800ET Processor PMC Module Installation and Use (PrPMC800A/IH5)
37
Harrier Power-Up Configuration Header
A 2mm, 16-pin low profile header located on side one of the PrPMC800/800ET provides the
means to change some of the Harrier power-up configuration settings. The pin assignments for
this header, along with the power-up setting with the shunt on or off, are as follows.
Table 4-7. J2 Harrier Power-Up Configuration Header Pin Assignments
J2 Shunt On Shunt Off
1 XAD[20]
termination
GND 2 PUST0 = 0
Harrier PUST Bit 0
in GCSR Register.
PUST0 = 1
3 XAD[21]
termination
GND 4 PUST1 = 0
Harrier PUST Bit 1
in GCSR Register.
PUST1 = 1
5 XAD[22]
termination
GND 6 PUST2 = 0
Harrier PUST Bit 2
in GCSR Register.
PUST2 = 1
7 XAD[23]
termination
GND 8 PUST3 = 0
Harrier PUST Bit 3
in GCSR Register.
PUST3 = 1
9 XAD[28]
termination
3.3V 10 Hold off Configuration
Space access
Configuration Space
access enabled
1
1
XAD[26]
termination
3.3V 12 Processor held in reset
at power-up
Processor enabled at
power-up
1
3
XAD[19]
termination
3.3V 14 Class Code set for”I2O
Controller”
Class Code set for
“Bridge Device”
1
5
XAD[30]
termination
GND 16 Xport 1uses normal
data byte ordering
Xport 1 uses Hawk
data byte ordering