48)
REGISTER A REQUEST
LD/CD
Function:
Returns the contents of Register A. (Display)
Format:
$ A
Explanation:
Returns detailed attributes of Register A in the following format:
A
C8
C7
C6
C5
C4
C3
C2
C1
<C/R>
C1:
Frame number display
1 = ON; 0 = OFF
C2:
Chapter number display
1 = ON; 0 = OFF
C3:
User Area display
1 = ON; 0 = OFF
C4 to C8 are set to “0”.
Execution:
7 R A <C/R>
R <C/R>
$ A <C/R>
A 0 0 0 0 0 1 1 1 <C/R>
* Frame number, chapter number and User’s Display are enabled.
49)
REGISTER B REQUEST
LD/CD
Function:
Returns the contents of Register B. (Squelch Control)
Format:
$ B
Explanation:
Returns Register B video and audio squelch attributes in the
following format:
B
C8
C7
C6
C5
C4
C3
C2
C1
<C/R>
C8:
Video squelch disabled;
1 = ON; 0 = OFF
C7:
Audio squelch disabled
1 = ON; 0 = OFF
C1 to C6 are set to “0”.
Execution:
1 2 8 R B <C/R>
R <C/R>
$ B <C/R>
B 1 0 0 0 0 0 0 0 <C/R>
* Video squelch is disabled; Audio squelch is enabled.
1 9 2 R B <C/R>
R <C/R>
$ B <C/R>
B 1 1 0 0 0 0 0 0 <C/R>
* Video and audio squelch are both disabled.
0 R B <C/R>
R <C/R>
$ B <C/R>
B 0 0 0 0 0 0 0 0 <C/R>
* Video and audio squelch are both enabled
CLD-V2800 Level III User’s Manual
TP 120 v. 1.0 • 10/95
3-43
CLD-V2800 Level III • Chapter Three