ViewSonic VP2650WB Service Manual page 34

F. Command definition
PC Host will send 0x7C IIC slave address and then following 4 bytes command
I2C Send Command
Write Contrast to MCU RAM
Write Brightness to MCU RAM
Write Red Gain to MCU RAM
Write Green Gain to MCU RAM
Write Blue Gain to MCU RAM
Write s-Brightness data
Read Contrast from MCU RAM
Read Brightness from MCU RAM
Read Red Gain from MCU RAM by color
index
Read Green Gain from MCU RAM by color
index
Read Blue Gain from MCU RAM by color
index
Read F/W version from MCU's constant
definition
Read panel vender from MCU's constant
definition
Read Product ID
Read s-Brightness data
Write C1 (Bluish) R-Gain Data to EEPROM
Write C1 (Bluish) G-Gain Data to EEPROM
Write C1 (Bluish) B-Gain Data to EEPROM
Write C2 (sRGB) R-Gain Data to EEPROM
Write C2 (sRGB) G-Gain Data to EEPROM
Write C2 (sRGB) B-Gain Data to EEPROM
Write C3 (Reddish) R-Gain Data to
EEPROM
Write C3 (Reddish) G-Gain Data to
EEPROM
Write C3 (Reddish) B-Gain Data to
EEPROM
Write User R-Gain Data to EEPROM
Write User G-Gain Data to EEPROM
Write User B-Gain Data to EEPROM
Write Cx R-Gain Data to EEPROM
Write Cx G-Gain Data to EEPROM
Write Cx B-Gain Data to EEPROM
Write Cx2 R-Gain Data to EEPROM
Write Cx2 R-Gain Data to EEPROM
Write Cx2 R-Gain Data to EEPROM
Write Contrast to EEPROM
Write Brightness to EEPROM
Write C/T index to EEPROM
Write OSD-Hpos to EEPROM
Write OSD-Vpos to EEPROM
ViewSonic Corporation
Byte1 Byte2 Byte3 Byte4
CA 55 Data cksum
CA 56 Data cksum
CA 57 Data cksum
CA 58 Data cksum
CA 59 Data cksum
CA 9C Data cksum
C3 55 XX cksum
C3 56 XX cksum
C3 57 XX cksum
C3 58 XX cksum
C3 59 XX cksum
C3 5A XX cksum
C3 5B XX cksum
C3 5C XX cksum
C3 9C XX cksum
AA 3C Data cksum
AA 3D Data cksum
AA 3E Data cksum
AA 4C Data cksum
AA 4D Data cksum
AA 4E Data cksum
AA 5C Data cksum
AA 5D Data cksum
AA 5E Data cksum
AA 6C Data cksum
AA 6D Data cksum
AA 6E Data cksum
AA 7C Data cksum
AA 7D Data cksum
AA 7E Data cksum
AA 8C Data Cksum
AA 8D Data Cksum
AA 8E Data Cksum
AA 92 Data Cksum
AA 93 Data Cksum
AA 94 1~6 cksum
AA 95 Data cksum
AA 96 Data cksum
31
Confidential - Do Not Copy
Don't
Must care
√
√
Write data to MCU RAM and
√
update the related register to
√
refresh the screen immediately.
Don't store data to EEPROM.
√
Set brightness default of
PWM( may not match OSD)
?
<Note H>
√
√
√
√
Base on current color index to
read back the right gain value.
√
Please see <Note F> for detail
√ implementation
Please see <Note G> for detail
implementation
√
Reply EDID(analog if dual
√ inputs) address 0A
Set brightness default of
PWM( may not match OSD)
? <Note H>
√
√
√
√
√
√
√
√
√
X
X
X
√
By
√
mode Reserved for some model have
l extra color temperature
√
√
√
√
X
X
1=C1/9300/Bluish,
2=C2/6500/sRGB/,
3=C3/5500/Reddish,
4=User, 5=Cx, 6=Cx2
√
X
X
Note
VP2650wb-1