CPCI-3U
Bus
The
four-axis CPCI-3U is a smaller version of the -6U board. It connects
to the backplane via two connectors: J1 and J2 (see figure above).
Motion drive I/O is conveyed via J2, which is described in Chapter
4. Connector J1 is reserved as a computer bus, and is described
in this section.
Backplane
connector pins are referred to by numbered rows and lettered columns
as shown below:
CPCI-3U
Main Board, Rear Panel Connector J1: User I/O
NOTE:
the CPCI XMP does not use the 64-bit extension.
CPCI backplane
connector (main and expansion boards).
|
Pin
|
A
|
B
|
C
|
D
|
E
|
|
25
|
5V
|
REQ64#
|
ENUM#
|
3.3V
|
5V
|
|
24
|
AD[01]
|
5V
|
V(I/O)
|
AD[00]
|
ACK64#
|
|
23
|
3.3V
|
AD[04]
|
AD[03]
|
5V
|
AD[02]
|
|
22
|
AD[07]
|
GND
|
3.3V
|
AD[06]
|
AD[05]
|
|
21
|
3.3V
|
AD[09]
|
AD[08]
|
M66EN
|
C/BE[0]#
|
|
20
|
AD[12]
|
GND
|
V(I/O)
|
AD[11]
|
AD[10]
|
|
19
|
3.3V
|
AD[15]
|
AD[14]
|
GND
|
AD[13]
|
|
18
|
SERR#
|
GND
|
3.3V
|
PAR
|
C/BE[1]#
|
|
17
|
3.3V
|
SDONE
|
SBO#
|
GND
|
PERR#
|
|
16
|
DEVSEL#
|
GND
|
V(I/O)
|
STOP#
|
LOCK#
|
|
15
|
3.3V
|
FRAME#
|
IRDY#
|
GND
|
TRDY#
|
|
12
- 14
|
Key
Area
|
|
|
|
|
|
11
|
AD[18]
|
AD[17]
|
AD[16]
|
GND
|
C/BE[2]#
|
|
10
|
AD[21]
|
GND
|
3.3V
|
AD[20]
|
AD[19]
|
|
9
|
C/BE[3]#
|
IDSEL
|
AD[23]
|
GND
|
AD[22]
|
|
8
|
AD[26]
|
GND
|
V(I/O)
|
AD[25]
|
AD[24]
|
|
7
|
AD[30]
|
AD[29]
|
AD[28]
|
GND
|
AD[27]
|
|
6
|
REQ#
|
GND
|
3.3V
|
CLK
|
AD[31]
|
|
5
|
BRSVP1A5
|
BRSVP1B5
|
RST#
|
GND
|
GNT#
|
|
4
|
BRSVP1A4
|
GND
|
V(I/O)
|
INTP
|
INTS
|
|
3
|
INTA#
|
INTB#
|
INTC#
|
5V
|
INTD#
|
|
2
|
TCK
|
5V
|
TMS
|
TDO
|
TDI
|
|
1
|
5V
|
-12V
|
TRST#
|
+12V
|
5V
|
| 
