- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
96
10.3.4. Using Four-Quadrant Independent Control
The CXD3172AR can set HUE/GAIN for R-Y and B-Y data independently in four quadrants on the R-G/B-G
axes prior to conversion to R-Y/B-Y.
The setting procedure is described below.
1. Turn off the suppression function and OUTGAIN.
2. Switch to four-quadrant independent control.
3. Enable HUE/GAIN control.
4. Adjust HUE/GAIN for each quadrant through parameters.
1. Turn off the suppression function and OUTGAIN.
The suppression function and OUTGAIN can be turned off using the following parameters.
Table 10.3-3 Enabling HUE/GAIN control
Parameter
Description
OUTGAIN
CAT12_Byte6_bit1
0[h]:OFF 1[h]:ON
SPRS
CAT12_Byte6_bit2
0[h]:OFF 1[h]:ON
2. Switch to four-quadrant independent control.
If HUE/GAIN control is set to four-quadrant simultaneous control, set the following parameter to 1[h] in order
to switch to four-quadrant independent control.
Table 10.3-4 HUE/GAIN adjustment parameters
Parameter
Description
RBQUADON CAT2_Byte29_bit7
0[h]: Four-quadrant simultaneous
1[h]: Four-quadrant independent
3. Enable HUE/GAIN control.
Set the following parameters to 1[h] to enable HUE/GAIN control.
Table 10.3-5 Enabling HUE/GAIN control
Parameter
Description
CRGAINCTL
CAT12_Byte8_bit2
0[h]: Disable Gain control 1[h]: Enable control
HUECTL
CAT12_Byte8_bit4
0[h]: Disable Hue control 1[h]: Enable control