Burst Handshaking Timing Defaults for NI 653X Devices
The following table lists the default terminals used for burst handshake timing.
 |
Note The NI 6533 and NI 6534 have two timing engines, Timing Engine 1 and Timing Engine 0. Each timing engine is associated with PFI lines. The timing engine you use is determined by the digital lines you use. If the least significant port is port 0, NI-DAQmx picks Timing Engine 0. If the least significant port is port 2, NI-DAQmx picks Timing Engine 1. |
| Device | Pause Trigger Default | Ready for Transfer Event Default |
|---|---|---|
| NI PCI-6533 (DIO-32HS) | PFI 2 (Timing Engine 0), PFI 3 (Timing Engine 1) | PFI 6 (Timing Engine 0), PFI 7 (Timing Engine 1) |
| NI PCI-6534 | PFI 2 (Timing Engine 0), PFI 3 (Timing Engine 1) | PFI 6 (Timing Engine 0), PFI 7 (Timing Engine 1) |
| NI PXI-6533 | PFI 2 (Timing Engine 0), PFI 3 (Timing Engine 1) | PFI 6 (Timing Engine 0), PFI 7 (Timing Engine 1) |
| NI PXI-6534 | PFI 2 (Timing Engine 0), PFI 3 (Timing Engine 1) | PFI 6 (Timing Engine 0), PFI 7 (Timing Engine 1) |
| NI PCIe-6536 | PFI 0 | PFI 1 |
| NI PCIe-6537 | PFI 0 | PFI 1 |
The recommended sample clock terminal for burst handshake timing is PFI 4 (Timing Engine 0) or PFI 5 (Timing Engine 1).