iv • Figures
Figures
Figure 1: PCB Layout of the DAQ-20XX..................................13
Figure 2: PCB Layout of the PXI-20XX....................................13
Figure 3: 68-pin VHDCI-type pin assignment ...........................16
Figure 4: Single-Ended connections........................................18
Figure 5: Ground-referenced source and differential input ........19
Figure 6: Floating source and differential input.........................20
Figure 7: Synchronous Digital Inputs Block Diagram ................22
Figure 8: Synchronous Digital Inputs timing.............................22
Figure 9: Scan Timing............................................................27
Figure 10: Pre-trigger...............................................................28
Figure 11: Pre-trigger scan acquisition......................................29
Figure 12: Pre-trigger with M_enable = 0...................................29
Figure 13: Pre-trigger with M_enable = 1...................................30
Figure 14: Middle trigger with M_enable = 1..............................31
Figure 15: Middle trigger..........................................................31
Figure 16: Post trigger .............................................................32
Figure 17: Delay trigger ...........................................................33
Figure 18: Post trigger with re-trigger ........................................34
Figure 19: Scatter/gather DMA for data transfer.........................35
Figure 20: Typical D/A timing of waveform generation................38
Figure 21: Post trigger waveform generation .............................39
Figure 22: Delay trigger waveform generation ...........................39
Figure 23: Re-triggered waveform generation............................40
Figure 24: Finite iterative waveform generation with Post-trigger
and DLY2_Counter = 0............................................41
Figure 25: Infinite iterative waveform generation with Post-trigger
and DLY2_Counter = 0............................................41
Figure 26: Stop mode I ............................................................43
Figure 27: Stop mode II ...........................................................43
Figure 28: Stop mode III...........................................................43
Figure 29: Mode 1 Operation....................................................45
Figure 30: Mode 2 Operation....................................................46
Figure 31: Mode 3 Operation....................................................46
Figure 32: Mode 4 Operation....................................................47
Figure 33: Mode 5 Operation....................................................47
Figure 34: Mode 6 Operation....................................................48