ASTRO VG-871 - SHDMI4 [20 H 36 H]: HDMI Data Registration

Chapter 2 INDIVIDUAL FORMATS FOR VG CONTROL COMMANDS
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2.23 SHDMI4 [20H 36H]: HDMI data registration
Function: This command registers the HDMI data of the designated program number.
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
SHDMI4
2 bytes
20H 36H
Program number
1 to 4 bytes
“0” to “1000”, “9999”
,
1 byte
2CH (Delimiter)
HDMI Mode
1 byte
“1” = HDMI, “2” = DVI, “4” = Auto
,
1 byte
2CH (Delimiter)
Video Format
1 byte
“0” = RGB, “1” = YCbCr444, “2” = YCbCr422
“3”=YCbCr420
,
1 byte
2CH (Delimiter)
Audio Out
1 byte
“0” = OFF, “1” = ON (All channels ON/OFF)
,
1 byte
2CH (Delimiter)
Video Width
1 byte
“0” = Single (Auto)
“1” = Single (8 bits)
“2” = Single (10 bits)
“3” = Single (12 bits)
,
1 byte
2CH (Delimiter)
Scramble *2
1 byte
“0”=ON (3.4G over), “1”=OFF
ETX
1 byte
03H
Fig. 2-23-1
*1: The ranges of the settings are as listed below by video format.
Video Format
Setting range
RGB
“0” to “255”
YCbCr444
“0” to “255”
YCbCr422 (16 bits)
“0” to “255”
YCbCr422 (20 bits)
“0” to “1023”
YCbCr422 (24 bits)
“0” to “4095”
*2 Available only for VG-876