Any output-capable I/O lines is fitted with a source signal multiplexer.
The source signal multiplexers implement a fully-populated signal routing matrix allowing a selection of internal signals to be routed to any output lines.
Selecting a line source
To select an internal signal to feed the line driver of an output capable I/O line:
| 1. | Select an I/O line by assigning the appropriate value to the LineSelector feature |
| 2. | Assign the appropriate value to the LineSource feature: |
| LineSource feature value | Source signal |
|---|---|
| UserOutput<0:7> | Any bit of the User Output register |
| Device<0:7>Strobe | Strobe output of any device |
| Device<0:7>CameraTrigger | Camera trigger of any device |
| Device<0:7>Stream<0:7>StartOfCameraReadout | StartOfCameraReadout event*1 on any stream of any device |
| Low | Steady low |
| High | Steady high |
*1 The StartOfCameraReadout event corresponds to a pulse of 344 ns.