C
URTISS
-W
RIGHT
C
ONTROLS
E
MBEDDED
C
OMPUTING
814256 V
ERSION
2 F
EBRUARY
2006
A-5
E
LECTRICAL
C
HARACTERISTICS
OF
J2 S
IGNALS
Table A.4 provides the electrical characteristics of the J2 signals.
T
ABLE
A.3:
J2 Connector Pin Assignments
Pin Number
Row E
Row D
Row C
Row B
Row A
22
GA0
GA1
GA2
GA3
GA4
21
NC
NC
NC
NC
NC
20
NC
GND
NC
NC
NC
19
NC
NC
NC
NC
NC
18
NC
GND
NC
NC
NC
17
NC
NC
NC
GND
NC
16
NC
GND
NC
NC
NC
15
NC
NC
NC
GND
NC
14
NC
GND
NC
NC
NC
13
NC
NC
V(I/O)
GND
NC
12
NC
GND
NC
NC
NC
11
NC
NC
V(I/O)
GND
NC
10
NC
GND
NC
NC
NC
9
NC
NC
V(I/O)
GND
NC
8
NC
GND
NC
NC
NC
7
NC
NC
V(I/O)
GND
NC
6
NC
GND
NC
NC
NC
5
NC
NC
V(I/O)
GND
NC
4
NC
GND
NC
NC
V(I/O)
3
NC
NC
NC
GND
NC
2
NC
NC
NC
NC
NC
1
NC
NC
NC
GND
NC
T
ABLE
A.4:
J2 Connector Description
Signal Name
Direction
Description
Electrical
Characteristics
GA[4:0]
Input
Signals are pulled to 3.3v on board. Geographical
Address signals are used to provide a unique slot ID for
every slot in a cPCI backplane.
GND or floating on
backplane.
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