JVC DLA-RS4800U Command Communication Specification for D-ILA Projectors (v1.7 - Page 29

Gamma data of Gamma table Custom 1/2/3 [GammaRed, Green, Blue]

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4 Command control 4.9 Gamma data of Gamma table "Custom 1/2/3" [GammaRed, Green, Blue] Used for sending operation of the gamma data when the Gamma table is Custom, and referencing the gamma data of the projector. Target of switching and referencing is followed by setting value of the Gamma bank. Command code HEX 0x47 0x52 0x47 0x47 0x47 0x42 Table 4-17 GAMMA DATA CMD ASCII 'G' 'R' 'G' 'G' 'G' 'B' Function Gamma data of the gamma table "Custom1/2/3" (Red) [GammaRed] Gamma data of the gamma table "Custom1/2/3" (Green) [GammaGreen] Gamma data of the gamma table "Custom1/2/3" (Blue) [GammaBlue] Operation Reference Parameters Data length: 512 The gamma data has 256 adjustment points composed of binary data. The byte order is little endian. When the projector is not powered on and it receives the command, the projector ignores the command and does not respond. When the gamma table of the projector is not "Custom1","Custom2" or "Custom3" and the projector receives the command, the projector ignores the command and does not respond. When the projector receives a gamma data by operation command, the projector saves the gamma data on proper area of EEPROM immediately. If the projector receives gamma data larger than 512 bytes, it is judged as invalid data and the projector does not respond. The curve is combination of the curve on the OSD and the table (Normal/A/B/C/D) in the video processor. 29 / 80 PJ03220107B

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4 Command control
29 / 80
PJ03220107B
4.9
Gamma data of Gamma table “Custom 1/2/3” [GammaRed, Green, Blue]
Used for sending operation of the gamma data when the Gamma table is Custom, and referencing the gamma data of the projector.
Target of switching and referencing is followed by setting value of the Gamma bank.
Command code
Table 4-17
GAMMA DATA CMD
HEX
ASCII
Function
Operation
Reference
0x47
0x52
'G'
'R'
Gamma data of the gamma table ”Custom1/2/3”
(Red) [GammaRed]
°
°
0x47
0x47
'G'
'G'
Gamma data of the gamma table ”Custom1/2/3”
(Green) [GammaGreen]
°
°
0x47
0x42
'G'
'B'
Gamma data of the gamma table ”Custom1/2/3”
(Blue) [GammaBlue]
°
°
Parameters
Data length: 512
The gamma data has 256 adjustment points composed of binary data.
The byte order is little endian.
°
When the projector is not powered on and it receives the command, the projector ignores the command and does not respond.
°
When the gamma table of the projector is not “Custom1”,”Custom2” or ”Custom3” and the projector receives the command, the
projector ignores the command and does not respond.
°
When the projector receives a gamma data by operation command, the projector saves the gamma data on proper area of
EEPROM immediately.
°
If the projector receives gamma data larger than 512 bytes, it is judged as invalid data and the projector does not respond.
°
The curve is combination of the curve on the OSD and the table (Normal/A/B/C/D) in the video processor.