D R A F T — F O R I N
T E R N A L U S E O N L Y
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User Guide
CP3004-SA
The GPIO_CFG0 signal on the rear I/O module enables the user to select between COMB and GPIO inter-
faces.
Note:
The default value is 1 if pin D4 is not connected on the rear I/ module (pull-up resistor to
3.3V on CP3004-SA).
Table 13: CompactPCI Rear I/O Connector J2 Signals
SIGNAL
DESCRIPTION
COMAx
COMA port LVTTL (3.3V)
COMBx
COMB port LVTTL (3.3V)
GPI/GPO
General purpose input / general purpose output signal
GPIO_CFG0
GPIO or COMB configuration
IPx
Gigabit Ethernet copper port
SATAx
SATA port
USBx
USB interface and power
VGAx
VGA signal
RIO_XFO_CT
Power supply for Gigabit Ethernet transformer center tap
RIOx/V(I/O)
Power supply signal
PWRx
Power management signal
RSV
Reserved
GND
Ground signal
NC
Not connected
Table 14: GPIO Signal Description
SIGNAL
DESCRIPTION
GPIO_CFG0
0 = GPIO
1 = COMB