ASTRO VG-877 - 4.5 SOT [4 AH]: Output condition data registration

Chapter 4 INDIVIDUAL FORMATS FOR CONTROL COMMANDS
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3.31 ALLCLR4 [28H 60H]: All planes clear
Function: This command clears all the planes.
Sequence: Type 2
Command:
STX
1 byte
02H
VG4CMD
1 byte
FDH
ALLCLR4
2 bytes
28H 60H
ETX
1 byte
03H
Fig. 3-31-1