ViewSonic CD4233 - Get-Function Listing

Commercial Display RS-232 Protocol
Revision 1.x
________________________________________________________________
May 28, 2007 12 / 16 Commercial Display RS-232 Protocol
004 : YPbPr
005 : S-Video
Monitor ID
5
=
3D
001 ~ 026
Number
5
@
40
000 ~ 009
Key Pad
5
A
41
000 : POWER
001 : SOURCE
002 : MENU/EXIT
003 : UP
004 : DOWN
005 : LEFT
006 : RIGHT
007 : MUTE
Remote Control
5
B
42
000: Disable
Disable: RCU has no effect on
HDTV.
001: Enable
Enabled: RCU controls the
HDTV. This is the power up
default on the HDTV.
002: Pass through
Pass through: RCU has no
effect on HDTV and all RCU
command codes are transmitted
to FC via the RS232 port. See
page 26 for more details
Key Pad
5
C
43
000: Disable
Disable: Key Pad have no
effect on HDTV.
001: Enable
Enabled: Key Pad control the
HDTV. This is the power up
default on the HDTV.
Factory reset
5
~
7E
0
Rests HDTV to factory setting
4.2 Get-Function Listing
The PC can interrogate the LCD Monitor for specific information. The Get-Function packet format
consists of 5 bytes which is similar to the Set-Function packet structure. Note that the “Value” byte
is always = 00.
Get-Function description:
Length:
Total bytes of message = 5 ASCII (35H), excluding “CR”
Command:
Get-Function command code: One byte ASCII code
Value[1~3]:
Always = 000
Get-Function format from PC to LCD (ASCII)
Name
Length
Command
Value1
Value2
Value3
CR
Byte Count
5
1 Byte
0
0
0
00D
Bytes order
1
2
3
4
5
6
Monitor shall response to Get-Function with the following packet format:
LCD Monitor response packet format:
Name
Length
Value1
Value2
Value3
Value4
CR