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© National Instruments Corporation B-1 653X User Manual
B
Using PXI with CompactPCI
You can use your PXI-653X device as a plug-in device in a standard
CompactPCI chassis, but you will not be able to 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 PXI-653X device will work 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
PXI-653X device. 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 PXI-653X Device
PXI-653X
Signal
PXI Pin Name PXI J2 Pin Number
RTSI Trigger
(0..6)
PXI Trigger (0..6) B16, A16, A17, A18, B18,
C18, E18
Reserved PXI Star D17
RTSI Clock PXI Trigger (7) E16
Reserved LBR (7, 8, 10, 11, 12) A3, C3, E3, A2, B2