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2.8 Interrupts

The DAQ-16 is capable of generating an interrupt from one of four sources:

1. End of conversion signal

2. DMA terminal count

3. Multi-function timer output

4. External interrupt input

The interrupt source is software selected through the DAQ-16 control word register. The

interrupt level is selected using the jumpers J10 and J11 as shown in Figure 2-11.

IRQ 11

IRQ 14

IRQ 15

IRQ 12

IRQ 10

IRQ 2

IRQ 3

IRQ 4

IRQ 5

IRQ 6

IRQ 7

J11

J10

Factory default = IRQ 5

Figure 2-11. Jumpers J10 and J11 Configuration

2.8.1 External Interrupt

The external interrupt is a TTL compatible input from the D-62 connector. An interrupt

request is generated on a high to low transition of this input.

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