National Instruments 321042A-01 Manual De Usuario

                                                                                                                                                   

This appendix contains useful information for you if you want to configure the
interrupt lines for an STD/STD32 computer not manufactured by WinSystems or
Ziatech, or a computer that is not AT-compatible.

The STD-GPIB can assert interrupts using one of 10 interrupt lines.  These
interrupt sources are available on either the frontplane or backplane, as described in
the following sections.

The five frontplane interrupts available through connector J3 are FP2, FP4, FP6,
FP8, and FP10.  They are active-low inputs in a Ziatech STD32 computer and
active-high inputs in a WinSystems computer (non-STD32).  The STD-GPIB
automatically detects whether the host computer is an STD32 computer after it is
installed, and configures its interrupt signals accordingly (active-low if the host
computer is STD32, active-high otherwise).  If you have an STD32 computer that
uses active-high frontplane interrupt signals, or if you have a non-STD32 computer
that uses active-low frontplane interrupt signals, you should not use any of the
frontplane interrupts on the STD-GPIB.

The pin assignments for connector J3 are given in Table B-1.

Table B-1.  J3 Frontplane Interrupt Connector Pinouts

1

GND

2

FP2

3

GND

4

FP4

5

GND

6

FP6

7

GND

8

FP8

9

GND

10

FP10