DSR—Device Status Reports

The host computer and terminal exchange DSR sequences to provide the host with the operating status of the following features:

Operating status
Keyboard status - language
Cursor position report
Cursor position with page
Printer port
User-defined keys
Macro space report
Memory checksum
Data integrity report

DSR requests and reports follow one of two formats, ANSI or DEC format. The format for each is as follows:

Format

CSI
9/11
Ps
3/n
n
6/14
ANSI format
CSI
9/11
?
3/15
Ps
3/n
n
6/14
DEC format

Parameters

Ps
indicates the type of DSR requested. See the following individual DSR reports for specific parameters within each report.

Description

There is a different DSR request for each feature. The following sections describe the possible DSR reports. If the terminal is in printer controller mode, then the printer receives the DSR request. The printer can respond through the bidirectional printer port.