41727001X2X-3 Datasheet, PDF (26/37 Pages) List of Unclassifed Manufacturers – PC, HDMI, DISPLAY PORT INTERFACE CONTROLLER FOR TFT PANEL

Appendix II – RS-232 control protocols
RS-232 Serial control (Baud rate 2400, 8 bits, 1 stop bit and no parity)
Physical connection :
Controller side
Connector interface : CN8
Mating connector : Molex 51021-0600
6543
1 _{Mating face of CN8}
PIN#
4
5
6
Description
RS-232 Tx Data
Ground
RS-232 Rx Data
Computer side
Connector interface : Serial port
Mating connector : DB9 Female
1
345
6789
Mating face of RS-232 DB9 Male
PIN#
2
3
5
Description
RS-232 Rx Data
RS-232 Tx Data
Ground
Software connection :
The OSD function can be controlled through sending the RS-232 protocol.
The RS-232 program can be custom-made to fit for application or it can be used the program provided by Digitalview on
request. Please contact your local sales for informations.
1. Commands to implement switch mount control buttons
Function
Command
Description
Menu
0xf7
Menu button pressed
Select-down
0xfa
Select down button pressed
button
Select-up button 0xfb
Select up button pressed
Right/+ button
0xfc
Right/+button pressed
Left/- button
0xfd
Left/- button pressed
Acknowledge (if enabled)
Button equivalent
Button equivalent
Button equivalent
Button equivalent
Button equivalent
2. Parameter setting - immediate, relative, reset and query
Function
Command
Description
Volume control - 0x80, “a” | “A”,
Set audio (L+R) volume =
left + right channel nn | “+” | “-“|
value/increment/decrement
“r” | “R” |
Reset
“?”
Query
Volume control - 0x80, “m” | “M”,
Disable audio output
on/off (mute)
“0” |
Enable audio output
“1“|
Reset
“r” | “R” |
Query
“?”
Volume control - 0x80, “s” | “S”,
Enable SPDIF output
Audio Output
“0” |
Enable Speaker output
“1“|
Reset
“r” | “R” |
Query
“?”
Brightness control 0x81,
Set brightness =
nn | “+” | “-” |
value/increment/decrement
“r” | “R” |
Reset
“?”
Query
Contrast control 0x82, “a” | “A”,
Set all contrast =
nn | “+” | “-” |
value/increment/decrement
“r” | “R” |
Reset
Phase ^#
“?”
0x85,
Query
Set dot clock phase =
nn | “+” | “-” |
value/increment/decrement
“?”
Image H position ^# 0x86,
Query
Set img_hpos =
nnnn | “+” | “-” |
value/increment/decrement
Image V position ^#
“?”
0x87,
nnnn | “+” | “-” |
Query
Set img_vpos =
value/increment/decrement
“?”
Query
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Acknowledge (if enabled)
Volume left + right
“0” – audio off (muted)
“1” – audio on
“0” – SPDIF
“1” – Speaker
Brightness.
Range: “0””0”-“6””4”
Default: “3””2”
Contrast.
Range: “4””0”-“6””4”
Default: “3””2”
Dot clock phase.
(In ARGB mode only)
Image horizontal position.
(In ARGB mode only)
Image vertical position.
(In ARGB mode only)