TMS320DM6437
Digital Media Processor
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SPRS345B–NOVEMBER 2006–REVISED MARCH 2007
Table 6-30. CCDC Register Descriptions (continued)
HEX ADDRESS RANGE
0x01C7 0438
0x01C7 043C
0x01C7 0440
0x01C7 0444
0x01C7 0448
0x01C7 044C
0x01C7 0450
0x01C7 0454
0x01C7 0458
0x01C7 045C
0x01C7 0460
0x01C7 0464
0x01C7 0468
0x01C7 046C
0x01C7 0470
0x01C7 0474
0x01C7 0478
0x01C7 047C
0x01C7 0480
0x01C7 0484
0x01C7 0488
0x01C7 048C
0x01C7 0490
0x01C7 0494
REGISTER ACRONYM
COLPTN
DESCRIPTION
CCD Color Pattern
Black Compensation
Reserved
BLKCMP
-
-
Reserved
VDINT
VD Interrupt Timing
A-Law Setting
ALAW
REC656IF
CCDCFG
REC656 Interface
CCD Configuration
FMTCFG
Data Reformatter/Video Port Configuration
Data Reformatter/Video Input Interface Horizontal Information
Data Reformatter/Video Input Interface Vertical Information
Address Pointer 0 Setup
FMT_HORZ
FMT_VERT
FMT_ADDR0
FMT_ADDR1
FMT_ADDR2
FMT_ADDR3
FMT_ADDR4
FMT_ADDR5
FMT_ADDR6
FMT_ADDR7
PRGEVEN_0
RRGEVEN_1
PRGGODD_0
PRGGODD_1
VP_OUT
Address Pointer 1 Setup
Address Pointer 2 Setup
Address Pointer 3 Setup
Address Pointer 4 Setup
Address Pointer 5 Setup
Address Pointer 6 Setup
Address Pointer 7 Setup
Program Entries 0-7 for Even Line
Program Entries 8-15 for Even Line
Program Entries 0-7 for Odd Line
Program Entries 8-15 for Odd Line
Video Port Output Settings
6.10.1.2 Preview Engine
The preview engine transforms raw unprocessed image/video data from a sensor (CMOS or CCD) into
YCbCr 4:2:2 data. The output of the preview engine is used for both video compression and external
display devices such as a NTSC/PAL analog encoder or a digital LCD. The following features are
supported by the preview engine.
•
•
•
•
Accepts conventional Bayer pattern formats.
Input image/video data from either the CCD/CMOS controller or the DDR2 memory.
Output width up to 1280 pixels wide.
Automatic/mandatory cropping of pixels/lines when edge processing is performed. If all the
corresponding modules are enabled, a total of 14 pixels per line (7 left most and 7 right most) and 8
lines (4 top most and 4 bottom most) will not be output.
•
Simple horizontal averaging (by factors of 2, 4, or 8) to handle input widths that are greater than 1280
(plus the cropped number) pixels wide.
•
•
Dark frame capture to DDR2.
Dark frame subtraction for every input raw data frame, fetched from DDR2, pixel-by-pixel to improve
video quality.
•
•
Lens shading compensation. Each input pixel is multiplied with a corresponding 8-bit gain value and
the result is right shifted by a programmable parameter (0-7 bits).
A-law decompression to transform non-linear 8-bit data to 10-bit linear data. This feature allows data in
DDR2 to be 8-bits, which saves 50% of the area if the input to the preview engine is from the DDR2.
•
•
Horizontal median filter for reducing temperature induced noise in pixels.
Programmable noise filter that operates on a 3x3 grid of the same color (effectively, this is a five line
216
Peripheral Information and Electrical Specifications
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