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Chapter 2 Configuration and Installation
© National Instruments Corporation 2-18 SCXI-1160 User Manual
Each digital line emulates the SCXIbus communication signals as follows:
• Pin 25 is SERDATIN and is equivalent to the SCXIbus MOSI serial data input line.
• Pin 27 is DAQD*/A and is equivalent to the SCXIbus D*/A line. It indicates to the module
whether the incoming serial stream on SERDATIN is data (DAQD*/A = 0) or address
(DAQD*/A = 1) information.
• Pin 29 is SLOT0SEL* and is equivalent to the SCXIbus INTR* line. It indicates whether the
data on the SERDATIN line is being sent to Slot 0 (SLOT0SEL* = 0) or to a module
(SLOT0SEL* = 1).
• Pin 24 or 50 is the digital ground reference for the data acquisition board digital signals and
is tied to the module digital ground via jumper W3. Pins 24 and 50 are not tied together.
- Pin 24 is for MIO type boards with jumpers W2, W3, and W4 in the MIO position.
- Pin 50 is for DIO type boards with jumpers W2, W3, and W4 in the DIO position.
• Pin 31 or 37 is SERCLK and is equivalent to the SCXIbus SPICLK line. These pins clock
the serial data on the SERDATIN line into the module registers. Pins 31 and 37 are not tied
together.
- Pin 31 is for DIO type boards with jumpers W2, W3, and W4 in the DIO position.
- Pin 37 is for MIO type boards with jumpers W2, W3, and W4 in the MIO position.
The digital output signal is pin 26 or 47:
• Pin 26 or 47 is SERDATOUT and is equivalent to SCXIbus MISO when jumper W5 is in
position 1. Pins 26 and 47 are not tied together.
- Pin 26 is for MIO type boards with jumpers W2, W3, and W4 in the MIO position.
- Pin 47 is for DIO type boards with jumpers W2, W3, and W4 in the DIO position.
When you configure the SCXI-1160 for an MIO type board, the digital I/O signals of the
SCXI-1160 match the digital I/O lines of the MIO-16 board. When used with an SCXI -1341,
SCXI-1342, or SCXI-1344 cable assembly, the SCXI-1160 signals match the digital lines of the
Lab-NB/Lab-PC/Lab-PC+/Lab-LC boards and the PC-LPM-16 board, respectively. When you
configure the SCXI-1160 for a DIO type board, the digital I/O signals of the SCXI-1160 match
the digital I/O lines of the DIO-24 and DIO-96 boards. When used with an SCXI-1348 cable
assembly, the SCXI-1160 signals match the digital lines of the DIO-32F board.
Table 2-4 lists the pin equivalences. For more information, consult Appendix E, SCXI-1160
Cabling.