National Instruments 636 Series

Contents
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Chapter 8
PFI
Using PFI Terminals as Timing Input Signals..................................................................8-2
Exporting Timing Output Signals Using PFI Terminals .................................................. 8-2
Using PFI Terminals as Static Digital I/Os ......................................................................8-3
Using PFI Terminals to Digital Detection Events ............................................................ 8-4
Connecting PFI Input Signals ...........................................................................................8-4
PFI Filters .........................................................................................................................8-4
I/O Protection....................................................................................................................8-6
Programmable Power-Up States....................................................................................... 8-6
Chapter 9
Digital Routing and Clock Generation
Clock Routing ...................................................................................................................9-1
100 MHz Timebase...................................................................................................9-2
20 MHz Timebase..................................................................................................... 9-2
100 kHz Timebase .................................................................................................... 9-2
External Reference Clock .........................................................................................9-2
10 MHz Reference Clock .........................................................................................9-3
Synchronizing Multiple Devices ......................................................................................9-3
PXI Express Devices ................................................................................................9-3
PCI Express Devices................................................................................................. 9-3
USB Devices.............................................................................................................9-4
Real-Time System Integration (RTSI).............................................................................. 9-4
RTSI Connector Pinout.............................................................................................9-5
Using RTSI as Outputs .............................................................................................9-6
Using RTSI Terminals as Timing Input Signals.......................................................9-6
RTSI Filters...............................................................................................................9-7
PXI and PXI Express Clock and Trigger Signals ............................................................. 9-7
PXIe_CLK100 .......................................................................................................... 9-7
PXIe_SYNC100........................................................................................................9-7
PXI_CLK10 .............................................................................................................. 9-8
PXI Triggers .............................................................................................................9-8
PXI_STAR Trigger................................................................................................... 9-8
PXI_STAR Filters..................................................................................................... 9-8
PXIe_DSTAR<A..C> ...............................................................................................9-9
Chapter 10
Bus Interface
Data Transfer Methods .....................................................................................................10-1
PCI Express/PXI Express Device Data Transfer Methods.......................................10-1
USB Device Data Transfer Methods ........................................................................ 10-2
PXI Express Considerations .............................................................................................10-3
PXI and PXI Express Clock and Trigger Signals ..................................................... 10-3