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TMS320DM6446
Digital Media System on-Chip
SPRS283–DECEMBER 2005
Programmable noise filter that operates on a 3x3 grid of the same color (effectively, this is a five line
storage requirement).
Digital gain and white balance (color separate gain for white balance).
Programmable CFA interpolation that operates on a 5x5 grid.
Conventional Bayer pattern RGB and complementary color sensors.
Support for an image that is downsampled by 2x in the horizontal direction (with and without phase
correction). In this case, the image is 2/3 populated instead of the conventional 1/3 colors.
Support for an image that is downsampled by 2x in both the horizontal and vertical direction. In this
case, the image is fully populated instead of the conventional 1/3 colors.
Programmable RGB-to-RGB blending matrix (9 coefficients for the 3x3 matrix).
Fully programmable gamma correction (1024 entries for each color held in an on-chip RAM).
Programmable color conversion (RGB to YUV) coefficients (9 coefficients for the 3x3 matrix).
Luminance enhancement (non-linear) and chrominance suppression & offset.
The Preview Engine register memory mapping is shown in
Table 5-44
.
Table 5-44. Preview Engine Register Descriptions
HEX ADDRESS RANGE
0x01C7 0800
0x01C7 0804
0x01C7 0808
0x01C7 080C
0x01C7 0810
0x01C7 0814
0x01C7 0818
0x01C7 081C
0x01C7 0820
0x01C7 0824
0x01C7 0828
0x01C7 082C
0x01C7 0830
0x01C7 0834
0x01C7 0838
0x01C7 083C
0x01C7 0840
0x01C7 0844
0x01C7 0848
0x01C7 084C
0x01C7 0850
0x01C7 0854
0x01C7 0858
0x01C7 085C
0x01C7 0860
0x01C7 0864
0x01C7 0868
0x01C7 086C
0x01C7 0870
0x01C7 0874
0x01C7 0878
REGISTER ACRONYM
DESCRIPTION
PID
PCR
HORZ_INFO
VERT_INFO
RSDR_ADDR
RADR_OFFSET
DSDR_ADDR
DRKF_OFFSET
WSDR_ADDR
WADD_OFFSET
AVE
HMED
NF
WB_DGAIN
WBGAIN
WBSEL
CFA
BLKADJOFF
RGB_MAT1
RGB_MAT2
RGB_MAT3
RGB_MAT4
RGB_MAT5
RGB_OFF1
RGB_OFF2
CSC0
CSC1
CSC2
CSC_OFFSET
CNT_BRT
CSUP
Peripheral Revision and Class Information
Peripheral Control Register
Horizontal Information/Setup
Vertical Information/Setup
Read Address From SDRAM
Line Offset for the Read Data
Dark Frame Address From SDRAM
Line Offset for the Dark Frame Data
Write Address to the SDRAM
Line Offset for the Write Data
Input Formatter/Averager
Horizontal Median Filter
Noise Filter
White Balance Digital Gain
White Balance Coefficients
White Balance Coefficients Selection
CFA Register
Black Adjustment Offset
RGB2RGB Blending Matrix Coefficients
RGB2RGB Blending Matrix Coefficients
RGB2RGB Blending Matrix Coefficients
RGB2RGB Blending Matrix Coefficients
RGB2RGB Blending Matrix Coefficients
RGB2RGB Blending Matrix Offsets
RGB2RGB Blending Matrix Offsets
Color Space Conversion Coefficients
Color Space Conversion Coefficients
Color Space Conversion Coefficients
Color Space Conversion Offsets
Contrast and Brightness Settings
Chrominance Supression Settings
154
Peripheral and Electrical Specifications