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Contents
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National Instruments Corporation
xi
DMA Controllers ...........................................................................................................11-1
PXI Considerations ........................................................................................................11-2
PXI Clock and Trigger Signals........................................................................11-2
PXI and PXI Express.......................................................................................11-2
Using PXI with CompactPCI ..........................................................................11-3
Direct Memory Access (DMA) .......................................................................11-3
Interrupt Request (IRQ)...................................................................................11-4
Programmed I/O ..............................................................................................11-4
Changing Data Transfer Methods between DMA and IRQ ............................11-4
Appendix A
Device-Specific Information
NI 6238 ..........................................................................................................................A-1
NI 6239 ..........................................................................................................................A-4
Analog Input ..................................................................................................................B-1
Analog Output................................................................................................................B-2
Counters .........................................................................................................................B-3
Appendix C
Technical Support and Professional Services
Figures
Содержание PCI-6238
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