TVP5160
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SLES135E–FEBRUARY 2005–REVISED APRIL 2011
Table 3-17. Chrominance Processing Control 1
Subaddress 0Dh
Default
00h
7
6
5
4
3
2
1
0
3DYC
TBC
Reserved
Chroma adaptive comb enable
3DNR
Automatic color gain control
[1:0]
3DYC, frame recursive noise reduction (3DNR), and time base correction (TBC) can be used simultaneously or independently.
Memory requirements:
External Memory
3DYC
3DNR
Function
Required
0
1
0
1
0
0
1
1
None
None
3DYC only
3DNR only
3DYC + 3DNR
16 Mbits
16 Mbits
32 Mbits
Note: The SDRAM configuration register must be programmed before enabling features that require the SDRAM. Failure to do so will
result in incorrect operation of the memory controller
3DYC:
0 = Disable; the 2D adaptive 5-line comb filter is enabled (default)
1 = Enable
3DYC enhances 2D Y/C separation by utilizing temporal-based, or frame-based information. 3DYC requires the use of the frame buffer
memory and can be used simultaneously with 3DNR and TBC.
TBC:
00 = Disable (default)
01 = On
10 = Automatic selection
11 = Automatic selection
Line-based time correction corrects for horizontal phase errors encountered during video decoding up to ±80 pixels of error. TBC can
be used simultaneously with 3DYC and 3DNR. TBC does not require external memory.
Chrominance adaptive comb enable:
0 = Enable (default)
1 = Disable
This bit is effective on composite video only.
3DNR:
0 = Disable (default)
1 = Enable
Frame recursive noise reduction minimizes the amount of noise in interlaced CVBS, S-Video, or component inputs. 3DNR requires the
use of the frame buffer memory and can be used simultaneously with 3DYC and TBC.
Note: Noise reduction can not be used on progressive inputs.
Automatic color gain control (ACGC) [1:0]:
00 = ACGC enabled (default)
01 = Reserved
10 = ACGC disabled, ACGC set to the nominal value
11 = ACGC frozen to the previously set value
Copyright © 2005–2011, Texas Instruments Incorporated
Internal Control Registers
49
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