Trigger Source: This field selects the trigger source for
Trigger Source Selected |
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03 |
| 02 |
| 01 |
| 00 | |
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TTLTRIG0* | 0 |
| 0 |
| 0 |
| 0 |
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TTLTRIG1* | 0 |
| 0 |
| 0 |
| 1 |
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TTLTRIG2* | 0 |
| 0 |
| 1 |
| 0 |
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TTLTRIG3* | 0 |
| 0 |
| 1 |
| 1 |
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TTLTRIG4* | 0 |
| 1 |
| 0 |
| 0 |
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TTLTRIG5* | 0 |
| 1 |
| 0 |
| 1 |
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TTLTRIG6* | 0 |
| 1 |
| 1 |
| 0 |
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TTLTRIG7* | 0 |
| 1 |
| 1 |
| 1 |
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SOFTWARE TRIGGER | 1 |
| 0 |
| 0 |
| 0 |
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EXTERNAL TRIGGER | 1 |
| 0 |
| 0 |
| 1 |
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Using the Trigger To set up the Trigger Control Register for the VXIbus trigger types:
Control Register
SYNC mode: This mode allows the card to receive a trigger from one of the VXI backplane TTL trigger lines. To set the VXIbus SYNC trigger mode, the Trigger Mode field is set to SYNC (00) and the Trigger Source field is set to one of the *TTLTRIG lines. The Trigger Out field is not used.
OUTPUT mode: This mode allows the card to receive a trigger from one TTL trigger line and also source a trigger on another TTL trigger line. The output mode is not a VXIbus defined trigger mode. The output mode is used to synchronize additional modules. The Trigger Mode field is set to OUTPUT (11), the Trigger Source field is set one of the *TTLTRIG lines, and the Trigger Out field is set to a different *TTLTRIG line.
132 HP E1418A | Appendix B |
