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D.7 Interrupt function
The PCI-1784 can generate an interrupt to the PC for any of the
following conditions:
1. Counter 0 overflow
2. Counter 1 overflow
3. Counter 2 overflow
4. Counter 3 overflow
5. Counter 0 underflow
6. Counter 1 underflow
7. Counter 2 underflow
8. Counter 3 underflow
9. Counter 0 index in
10. Counter 1 index in
11. Counter 2 index in
12. Counter 3 index in
13. DI0 input
14. DI1 input
15. DI2 input
16. DI3 input
17. Counter 0 over-compare
18. Counter 1 over-compare
19. Counter 2 over-compare
20. Counter 3 over-compare
21. Counter 0 under-compare
22. Counter 1 under-compare
23. Counter 2 under-compare
24. Counter 3 under-compare
25. Timer pulse
Note that you can use only one of the card's interrupt sources at a given
time, unless you specially program your interrupt service routine to
handle multiple interrupt sources.
You enable the PCI-1784 interrupt functions by accessed through the
- Contents 3
- 1. Introduction 5
- 1.2 Applications 8
- 1.3 Installation Guide 8
- 1.4 Software Overview 10
- 1.6 Accessories 13
- 2. Installation 14
- 2.2 Driver Installation 16
- 2.3 Hardware Installation 17
- 3. Signal Connections 23
- 3.3 Signal Connections 25
- Quadrature encoder input 26
- Isolated digital output 28
- Isolated digital input 28
- Appendix A. Specifications 29
- Appendix B. Block Diagram 31
- C.1 Overview 33
- C.2 I/O Port Address Map 33
- Base Addr 37
- D31 ~ D0 Counter latch data 39
- 1514131211109876543210 44
- Clear Interrupt 44
- Software Latch 45
- SL3 SL2 SL1 SL0 45
- C.11 Board ID — BASE+28H 46
- Reset Counter 47
- SR3 SR2 SR1 SR0 47
- Appendix D. Operation 51
- D.2 Counter modes 52
- D.3 Digital noise filter 53
- D.4 Latch mode 54
- D.5 Counter reset value 55
- D.6 Timer function 55
- D.7 Interrupt function 56
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