Quantum Data 881 User Manual page 646

DCBM
Class
Description
Command syntax
Query syntax
Query response
Other required
commands
Example
268 Appendix A Command Reference
Display Code Bit Mask
Direct processor control
Sets the 4-bit binary bit mask used by the DCRD? query. The mask is entered as the
decimal equivalent of a 4-bit binary number. The binary number represents the masking of
the individual sense lines from M3 (MSB) to M0 (LSB). The DCBM? query returns the
current setting of DCBM.
DCBM mask
mask
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
DCBM?
mask
The FMTU command instructs the generator to use the new setting. The
updates hardware to the new setting and redraws the test image.
DCBM 7 // Set mask to read sense lines 0, 1 and 2 only
FMTU // Update hardware to current buffer contents
ALLU command