TVP5154 Datasheet, PDF (28/78 Pages) Texas Instruments – 4-CHANNEL LOW-POWER PAL/NTSC/SECAM VIDEO DECODER WITH INDEPENDENT SCALERS AND FAST LOCK

TVP5154
4-CHANNEL LOW-POWER PAL/NTSC/SECAM VIDEO DECODER
WITH INDEPENDENT SCALERS AND FAST LOCK
SLES163A – MARCH 2006 – REVISED JULY 2006
9.2.8 Luminance Processing Control #1 Register
Address
07h
Default
60h
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7
2× luma output
enable
6
Pedestal not
present
5
Disable raw
header
4
Luma bypass enabled during vertical
blanking
3
2
1
0
Luminance signal delay with respect to
chrominance signal
2× luma output enable:
0 = Output depends on bit 4, luminance bypass enabled during vertical blanking (default).
1 = Outputs 2x luma samples during the entire frame. This bit takes precedence over bit 4.
Pedestal not present:
0 = 7.5 IRE pedestal is present on the analog video input signal.
1 = Pedestal is not present on the analog video input signal (default).
Disable raw header:
0 = Insert 656 ancillary headers for raw data
1 = Disable 656 ancillary headers and instead force dummy ones (0x40) (default)
Luminance bypass enabled during vertical blanking:
0 = Disabled. If bit 7, 2× luma output enable, is 0, normal luminance processing occurs and YCbCr samples are output during
the entire frame (default).
1 = Enabled. If bit 7, 2× luma output enable, is 0, normal luminance processing occurs and YCbCr samples are output during
VACTIVE and 2× luma samples are output during VBLK. Luminance bypass occurs for the duration of the vertical blanking
as defined by registers 18h and 19h.
Luma signal delay with respect to chroma signal in pixel clock increments (range –8 to 7 pixel clocks):
1111 = – 8 pixel clocks delay
1011 = – 4 pixel clocks delay
1000 = – 1 pixel clocks delay
0000 = 0 pixel clocks delay (default)
0011 = 3 pixel clocks delay
0111 = 7 pixel clocks delay
9.2.9 Luminance Processing Control #2 Register
Address
08h
Default
00h
7
Reserved
6
Luminance filter select
5
4
Reserved
3
2
Peaking gain
1
0
Reserved
Luminance filter select:
0 = Luminance comb filter enabled (default)
1 = Luminance chroma trap filter enabled
Peaking gain (sharpness):
00 = 0 (default)
01 = 0.5
10 = 1
11 = 2
Information on peaking frequency: ITU-R BT.601 sampling rate: all standards — peaking center frequency is 2.6 MHz
9.2.10 Brightness Control Register
Address
09h
Default
80h
7
6
5
4
3
2
1
0
Brightness control
Brightness control:
1111 1111 = 255 (bright)
1000 0000 = 128 (default)
0000 0000 = 0 (dark)
28
Internal Control Registers
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