National Instruments 653 Series User Manual page 97

Using PXI with CompactPCI
© National Instruments Corporation
You can use your NI PXI-653X as a plug-in device in a standard
CompactPCI chassis, but then you cannot access PXI-specific functions,
such as RTSI bus features detailed in the PXI Specification, rev. 1.0.
The CompactPCI specification permits vendors to develop sub-buses that
coexist with the basic PCI interface on the CompactPCI bus. Compatible
operation is not guaranteed between CompactPCI devices with different
sub-buses nor between CompactPCI devices with sub-buses and PXI.
The standard implementation for CompactPCI does not include these
sub-buses. Your NI PXI-653X works in any standard CompactPCI chassis
adhering to the PICMG CompactPCI 2.0 R2.1 document.
PXI-specific features are implemented on the J2 connector of the
CompactPCI bus. The following table lists the J2 pins used by your
NI PXI-653X. Your PXI device is compatible with any CompactPCI
chassis with a sub-bus that does not drive these lines. Even if the sub-bus is
capable of driving these lines, the PXI device is still compatible as long as
those pins on the sub-bus are disabled by default and not ever enabled.
Table B-1. J2 Pins Used by Your NI PXI-653X
PXI-653X Signal
RTSI Trigger (0..6)
Reserved
RTSI Clock
Reserved
PXI Pin Name
PXI Trigger (0..6)
PXI Star
PXI Trigger (7)
LBR (7, 8, 10, 11, 12)
B-1
B
PXI J2 Pin Number
B16, A16, A17, A18,
B18, C18, E18
D17
E16
A3, C3, E3, A2, B2
NI 653X User Manual