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9. Appendix III – Serial control protocols
Function
Command
Description
Acknowledge (if enabled)
Menu
0xf7
Menu button pressed
Button equivalent
Select-down
button
0xfa
Select down button pressed
Button equivalent
Select-up button
0xfb
Select up button pressed
Button equivalent
Right/+ button
0xfc
Right/+button pressed
Button equivalent
Left/- button
0xfd
Left/- button pressed
Button equivalent
2.
Parameter setting - immediate, relative, reset and query
Function
Command
Description
Acknowledge (if
enabled)
Volume control - left
+ right channel
0x80, “a” | “A”,
nn | “+” | “-“|
“r” | “R” |
“?”
Set audio (L+R) volume =
value/increment/decrement
Reset
Query
Volume left + right
Volume control -
on/off (mute)
0x80, “m” | “M”,
“0” |
“1“|
“r” | “R” |
“?”
Disable audio output
Enable audio output
Reset
Query
“0” – audio off (muted)
“1” – audio on
Brightness control
0x81,
nn | “+” | “-” |
“r” | “R” |
“?”
Set brightness =
value/increment/decrement
Reset
Query
Brightness.
Range: “0””0”-“6””4”
Default: “3””2”
Contrast control
0x82, “a” | “A”,
nn | “+” | “-” |
“r” | “R” |
“?”
Set all contrast =
value/increment/decrement
Reset
Query
Contrast.
Range: “4””0”-“6””4”
Default: “3””2”
Phase
#
0x85,
nn | “+” | “-” |
“?”
Set dot clock phase =
value/increment/decrement
Query
Dot clock phase.
(In ARGB mode only)
Image H position
#
0x86,
nnnn | “+” | “-” |
“?”
Set img_hpos =
value/increment/decrement
Query
Image horizontal position.
(In ARGB mode only)
Image V position
#
0x87,
nnnn | “+” | “-” |
“?”
Set img_vpos =
value/increment/decrement
Query
Image vertical position.
(In ARGB mode only)
Sharpness
0x8a,
nn | “+” | “-” |”r” | ”R”
|
“?”
Set sharpness=
value/increment/decrement
Reset
Query
Sharpness
Range: “F””C”-“0””4”
Default: “0””0”
Frequency
#
0x8b,
nnnn | “+” | “-“ |
“?”
Frequency =
value/increment/decrement
Query
Frequency adjustment
(In ARGB mode only)
OSD H position
0x90,
nnn | “+” | “-“ | “r” |
“R” | “?”
Set osd_hpos =
value/increment/decrement
Reset
Query
OSD horizontal position
Range: “0””0””0”-“3””E””8”
Default: “1””F””4”
OSD V position
0x91,
nnn | “+” | “-“ | “r” |
“R” | “?”
Set osd_vpos =
value/increment/decrement
Reset
Query
OSD vertical position
Range: “0””0””0”-“3””E””8”
Default: “1””F””4”
Select menu timeout
0x93,
nn | “+” | “-“ | “r” |
“R” | “?”
Select menu timeout =
value/increment/decrement
Reset
OSD menu timeout value.
“00” – Continuous.
Value – Round up to