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National Instruments Corporation
B-1
B
Using PXI with CompactPCI
You can use your NI PXI-653
X
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-653
X
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-653
X
. 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-653
X
PXI-653
X
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