Video Test Generator User Guide 277
DCRD?
Display Code ReaD
Class Direct processor control
Description Returns the display code detected on the monitor sense lines as filtered through the
display code bit mask. Converting the returned decimal number to a 4-bit binary number
shows the status of the individual sense lines from M3 (MSB) to M0 (LSB).
Query syntax DCRD?
Query response code
code
0 = 0 0 0 0 8 = 1 0 0 0
1 = 0 0 0 1 9 = 1 0 0 1
2 = 0 0 1 0 10 = 1 0 1 0
3 = 0 0 1 1 11 = 1 0 1 1
4 = 0 1 0 0 12 = 1 1 0 0
5 = 0 1 0 1 13 = 1 1 0 1
6 = 0 1 1 0 14 = 1 1 1 0
7 = 0 1 1 1 15 = 1 1 1 1
Other required
commands
DCBM sets the mask used for reading the display code.
Example
DCRD? // Return current sense lines reading
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