Analog Devices Advantiv ADV7619 Hardware User's Manual page 107

Hardware User Guide
Selecting Auto or Manual CP CSC Conversion Mode
The ADV7619 CP CSC provides two modes for the CSC configuration: automatic CSC mode and manual CSC mode.
In automatic CSC mode, the user is required to program the input color space and the output color space for the correct operation of the
CSC matrix. Manual CSC mode allows the user to program all the color space conversion by manually programming CSC coefficients.
CSC_COEFF_SEL[3:0] , Addr 44 (CP), Address 0x68[7:4]
A control to select the mode the CP CSC operates in.
Function
CSC_COEFF_SEL[3:0]
0000
1111 (default)
xxxx
The selection of the CSC is automated in the ADV7619. Automatic or manual CSC mode can be selected by setting the
CSC_COEFF_SEL[3:0] bits. When CSC_COEFF_SEL[3:0] is set to 0b1111, the CSC mode is automatically selected, based on the input
color space and output color space required and set through the following registers:
•
INP_COLOR_SPACE[3:0]
•
RGB_OUT
•
ALT_GAMMA
Auto Color Space Conversion Matrix
The CSC matrix, AGC target gain values, and offset values can be configured automatically via the following set of registers:
•
INP_COLOR_SPACE[3:0]
•
RGB_OUT
•
ALT_GAMMA
•
OP_656_RANGE_SEL
INP_COLOR_SPACE[3:0] , IO, Address 0x02[7:4]
A control to set the color space of the input video. To be used in conjunction with ALT_GAMMA and RGB_OUT to configure the color
space converter. A value of 4'b1111 selects automatic setting of the input color space base on the primary mode and video standard
settings. Setting 1000 to Setting 1110 are undefined.
Function
INP_COLOR_SPACE[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1111 (default)
Table 40. Automatic Input Color Space Selection
PRIM_MODE[3:0] VID_STD[5:0]
0101 xxxx
0110 xxxx
Description
CP CSC configuration in manual mode
CP CSC configured in automatic mode
Reserved
Description
Forces RGB (range 16 to 235) input
Forces RGB (range 0 to 255) input
Forces YCrCb input (601 color space) (range 16 to 235)
Forces YCrCb input (709 color space) (range 16 to 235)
Forces XVYCC 601
Forces XVYCC 709
Forces YCrCb input (601 color space) (range 0 to 255)
Forces YCrCb input (709 color space) (range 0 to 255)
Input color space depends on color space reported by HDMI block.
Input Color Space
Dependent on AVI InfoFrame
Dependent on AVI InfoFrame
Rev. A | Page 107 of 204
Input Range
0:255 for YUV
Dependent on AVI InfoFrame for RGB
0:255 for YUV
Dependent on AVI InfoFrame for RGB
UG-237
Comments
HDMI component modes
HDMI graphic modes