Instruction Manual

Contents

Chapter 11

Bus Interface

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

Data Transfer Methods ..................................................................................................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

Chapter 12

Triggering

Triggering with a Digital Source ...................................................................................12-1

Appendix A

NI 6236 Device Information

NI 6236 Pinout...............................................................................................................A-1

NI 6236 Specifications...................................................................................................A-3

NI 6236 Accessory and Cabling Options ......................................................................A-3

Appendix B

Troubleshooting

Analog Input ..................................................................................................................B-1

Analog Output................................................................................................................B-2

Counters .........................................................................................................................B-3

Appendix C

Technical Support and Professional Services

Glossary

Index