Datasheet

43
SLES084C − August 2007 TVP5146
2.11.18 Component Pb Saturation Register
Subaddress 12h
Default 80h
7 6 5 4 3 2 1 0
Pb saturation [7:0]
Pb saturation [7:0]: This register works only with YPbPr component video. For RGB video, user
must use the AFE gain registers.
1111 1111 = 255 (maximum)
1000 0000 =128 (default)
0000 0000 = 0 (minimum)
2.11.19 Component Y Brightness Register
Subaddress 14h
Default 80h
7 6 5 4 3 2 1 0
Y brightness [7:0]
Y brightness [7:0]: This register works only with YPbPr component video.
1111 1111 = 255 (maximum)
1000 0000 = 128 (default)
0000 0000 = 0 (minimum)
2.11.20 AVID Start Pixel Register
Subaddress 16h–17h
Default 055h
Subaddress 7 6 5 4 3 2 1 0
16h AVID start [7:0]
17h Reserved AVID active Reserved AVID start [9:8]
AVID active:
0 = AVID out active in VBLK (default)
1 = AVID out inactive in VBLK
AVID start [9:0]: AVID start pixel number, this is a absolute pixel location from HSYNC start pixel
0.
NTSC 601 NTSC Sqp PAL 601 PAL Sqp
default 85 (55h) 86 (56h) 88 (58h) 103 (67h)
The TVP5146 decoder updates the AVID start only when the AVID start MSB byte is written to. If
the user changes these registers, then the TVP5146 decoder retains values in different modes
until this decoder resets. The AVID start pixel register also controls the position of the SAV code.