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ASTRO VG-871 - Chapter 2 INDIVIDUAL FORMATS for VG CONTROL COMMANDS; SHT4 [20 H 20 H]: H Timing Data Registration

ASTRO VG-871
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17
2
2
INDIVIDUAL FORMATS FOR VG
CONTROL COMMANDS
2.1 SHT4 [20H 20H]: H timing data registration
Function: This command registers the H timing data of the program whose number
has been designated. When the program number is 0, it writes the data into
the buffer RAM. When it is 9999, it writes the data into the command work
RAM.
Sequence: Type 2
Command:
STX
1 byte
02H
VG4CMD
1 byte
FDH
SHT4
2 bytes
20H 20H
Program number
1 to 4 bytes
“0” to “1000”, “9999”
,
1 byte
2CH (Delimiter)
μs/dot
1 byte
“0” = μs, “1” = dot
,
1 byte
2CH (Delimiter)
Repetition
1 to 2 bytes
“1” to “10”
,
1 byte
2CH (Delimiter)
DOT CLOCK
1 to 9 bytes
“0” to “999999999” (in 1 Hz increments)
,
1 byte
2CH (Delimiter)
H-PERIOD
1 to 5 bytes
“0” to “65535” (0 to 655.35 with μs)
,
1 byte
2CH (Delimiter)
H-DISPLAY
1 to 5 bytes
“0” to “65535” (0 to 655.35 with μs)
,
1 byte
2CH (Delimiter)
H-SYNC
1 to 5 bytes
“0” to “65535” (0 to 655.35 with μs)
,
1 byte
2CH (Delimiter)
H-BACK-PORCH
1 to 5 bytes
“0” to “65535” (0 to 655.35 with μs)
,
1 byte
2CH (Delimiter)
HD-START
1 to 5 bytes
“0” to “65535” (0 to 655.35 with μs)
,
1 byte
2CH (Delimiter)
HD-WIDTH
1 to 5 bytes
“0” to “65535” (0 to 655.35 with μs)
ETX
1 byte
03H
Fig. 2-1-1

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