Chapter 3
Signal Connections
©
National Instruments Corporation
3-5
PCI-DIO-96/PXI-6508/PCI-6503 User Manual
67, 69, 71, 73, 75, 77,
79, 81
CPB<7..0>
7
Bidirectional data lines for port B
of PPI C—CPB7 is the MSB,
CPB0 is the LSB.
68, 70, 72, 74, 76, 78,
80, 82
DPB<7..0>
10
Bidirectional data lines for port B
of PPI D—DPB7 is the MSB,
DPB0 is the LSB.
83, 85, 87, 89, 91, 93,
95, 97
CPA<7..0>
6
Bidirectional data lines for port A
of PPI C—CPA7 is the MSB,
CPA0 is the LSB.
84, 86, 88, 90, 92, 94,
96, 98
DPA<7..0>
9
Bidirectional data lines for port A
of PPI D—DPA7 is the MSB,
DPA0 is the LSB.
†
This document refers to the ports as A, B, and C and the PPIs (82C55As) as A, B, C, and D. NI-DAQmx, Traditional
NI-DAQ (Legacy), and LabVIEW documentation use numbers to identify each port and PPI. For example, this manual uses
PPI A port A to refer to port A of the 82C55A identified as PPI A. NI-DAQmx, Traditional NI-DAQ (Legacy),
LabWindows/CVI, LabVIEW, or other application software documentation, however, refer to this port as
0
. The Alternate
Port ID column shows the correlation between the different port names.
Table 3-1.
Signal Descriptions for PCI-DIO-96 and PXI-6508 I/O Connectors (Continued)
Pin
Signal Name
Alternate
Port ID
†
Description