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Quantum Data 801GC User Manual

Page 233

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6-107

DCBM

Display Code Bit Mask

Classification:

Format parameter setting

Command Syntax:

DCBM

Limits:

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

Query Syntax:

DCBM?

Query Response:

Description:

The DCBM command 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.

Other Required Cmds:

The FMTU command instructs the generator to use the new

setting. The ALLU command updates hardware to the new setting
and redraws the test image.

Example:

D C B M 7 / / S e t m a s k t o r e a d s e n s e l i n e s
/ / 0 , 1 & 2 o n l y

F M T U / / U p d a t e h a r d w a r e t o c u r r e n t

/ / b u f f e r c o n t e n t s

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