Racal Instruments 1256 Manual page 13

1256 User Manual
Chapter 6
..............................................................................................................................6-1
SCPI COMMAND REFERENCE ....................................................................................................6-1
General ........................................................................................................................................6-1
Chapter 7
..............................................................................................................................7-1
DIGITAL MODULE OPERATION ...................................................................................................7-1
General ........................................................................................................................................7-1
Digital Module Ports .................................................................................................................7-1
Asynchronous Digital Operation............................................................................................7-1
Synchronous Digital Operation .............................................................................................7-2
Mixing Synchronous and Asynchronous Modes of Operation ..............................................7-2
Specifying Ports on a Digital Module ....................................................................................7-3
Selecting the Mode of Operation...........................................................................................7-4
Enabling and Disabling the Ports ..........................................................................................7-5
Using the Asynchronous Mode of Operation ........................................................................7-5
Using the Synchronous Mode of Operation ..........................................................................7-6
Setting Up the Synchronous Test .........................................................................................7-8
Arming the Digital Modules .................................................................................................7-12
Checking for Data Transfer Completion..............................................................................7-13
Reading Data from a Synchronous Input Port ....................................................................7-14
Clearing Data from Synchronous Input and Output Ports...................................................7-15
Synchronous Control and Status Pins ................................................................................7-15
Synchronous and Asynchronous Example .........................................................................7-16
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