Contents

Chapter 7

Analog Output

Analog Output Circuitry................................................................................................

7-1

AO Range ......................................................................................................................

7-2

Minimizing Glitches on the Output Signal....................................................................

7-2

Analog Output Data Generation Methods.....................................................................

7-2

Software-Timed Generations ..........................................................................

7-2

Hardware-Timed Generations.........................................................................

7-2

Analog Output Digital Triggering .................................................................................

7-4

Connecting Analog Output Signals ...............................................................................

7-4

Analog Output Timing Signals......................................................................................

7-5

AO Start Trigger Signal ..................................................................................

7-5

Using a Digital Source......................................................................

7-5

Routing AO Start Trigger Signal to an Output Terminal .................

7-6

AO Pause Trigger Signal ................................................................................

7-6

Using a Digital Source......................................................................

7-6

AO Sample Clock Signal ................................................................................

7-7

Using an Internal Source ..................................................................

7-7

Using an External Source .................................................................

7-7

Routing AO Sample Clock Signal to an Output Terminal ...............

7-7

Other Timing Requirements .............................................................

7-7

AO Sample Clock Timebase Signal................................................................

7-8

Getting Started with AO Applications in Software.......................................................

7-9

Chapter 8

Digital I/O

Static DIO......................................................................................................................

8-2

I/O Protection ................................................................................................................

8-2

Increasing Current Drive ...............................................................................................

8-2

Connecting Digital I/O Signals .....................................................................................

8-3

Getting Started with DIO Applications in Software......................................................

8-4

Chapter 9

Counters

Counter Input Applications ...........................................................................................

9-2

Counting Edges ...............................................................................................

9-2

Single Point (On-Demand) Edge Counting ......................................

9-2

Buffered (Sample Clock) Edge Counting.........................................

9-3

Non-Cumulative Buffered Edge Counting .......................................

9-4

Controlling the Direction of Counting..............................................

9-4