The Digitizer Status Registers

The Status

Subsystem

Commands

This chapter describes the HP E1429 digitizer status system. Included is information on the STATus subsystem commands, the status groups used by the digitizer, the conditions monitored by each group, and information on how to enable a condition to interrupt a computer.

The commands included in the STATus subsystem are:

STATus :OPC

:INITiate <state > :OPERationQUEStionable

[:CONDition]? :ENABle <unmask > [:EVENt]?

:NTRansition <unmask > :PTRansition <unmask >

:PRESet

Status System Registers

Operating conditions within the digitizer are monitored by registers in various status groups. The status groups implemented by the digitizer are:

∙Questionable Signal Status Group

–condition register

–transition filter

–event register

–enable register

∙Operation Status Group

–condition register

–transition filter

–event register

–enable register

∙Standard Event Status Group

–standard event status register

–standard event status enable register

∙Status Byte Status Group

–status byte register

–service request enable register

The relationship between the registers and filters in these groups is shown in Figure 3-16.

Chapter 3

Understanding the HP E1429 Digitizer 165

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HP E1429A manual Digitizer Status Registers, Status Subsystem Commands, Status System Registers