Configuration and Installation
Chapter 2
AT-MIO-16D User Manual
2-8
© National Instruments Corporation
If you do not want to use interrupts, place the jumpers on W13 in the position shown in
Figure 2-7. This setting disables the AT-MIO-16D from asserting an interrupt line on the PC AT
I/O channel.
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•
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3
4
5
6
7
9 10 11 12 14 15
DIO IRQ
W13
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• • •
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MIO IRQ
Figure 2-7. Interrupt Jumper Setting for Disabling Interrupts
DIO-24 Circuitry Interrupt Enable Settings
To enable interrupt requests from the DIO-24 circuitry, you must set jumper W14 to select PC2,
PC4, or PC6 as the active low interrupt enable line. When the interrupt enable line is logic low,
interrupts are enabled from the DIO-24 circuitry of the AT-MIO-16D board. Refer to Chapter 4,
Programming, for the suggested interrupt enable line setting for each digital I/O mode of
operation. If W14 is set to N/C, all interrupt requests from the DIO-24 circuitry are disabled.
Figure 2-8 shows the possible jumper settings for W14. The board is shipped with this jumper set
to PC4; therefore, interrupt requests from the board are enabled and controlled by PC4.
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• •
• •
W14
DIO INT
PC6
PC4
PC2
N/C
• •
• •
• •
W14
PC6
PC4
PC2
N/C
DIO INT
(Default Factory Setting)
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• •
• •
W14
PC6
PC4
PC2
N/C
DIO INT
• •
• •
• •
W14
PC6
PC4
PC2
N/C
DIO INT
Figure 2-8. Jumper Settings–PC6, PC4, PC2, and N/C
Analog I/O Jumper Settings
The AT-MIO-16D is shipped from the factory with the following configuration:
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Differential analog input (eight channels)
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Bipolar analog input
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±
10 V input range
Содержание AT-MIO-16D
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