G2R-14-12VDC Datasheet, PDF (37/73 Pages) Texas Instruments – Ultralow Power NTSC/PAL/SECAM Video Decoder With RObust Sync Detector

2.20.18 Active Video Cropping Start Pixel LSB Register
Address
12h
Default
00h
7
6
5
4
3
2
1
0
Reserved
AVID active
AVID start pixel LSB [1:0]
AVID active:
0 = AVID out active in VBLK (default)
1 = AVID out inactive in VBLK
Active video cropping start pixel LSB [1:0]: The TVP5150A decoder updates the AVID start values only when this
register is written to.
AVID start [9:0] (combined registers 11h and 12h):
01 1111 1111 = 511
00 0000 0001 = 1
00 0000 0000 = 0 (default)
11 1111 1111 = −1
10 0000 0000 = −512
2.20.19 Active Video Cropping Stop Pixel MSB Register
Address
13h
Default
00h
7
6
5
4
3
2
1
0
AVID stop pixel MSB
Active video cropping stop pixel MSB [9:2], set this register first before setting the register 14h. The TVP5150A
decoder updates the AVID stop values only when register 14h is written to. This stop pixel value is relative to the
default values of the AVID stop pixel.
2.20.20 Active Video Cropping Stop Pixel LSB Register
Address
14h
Default
00h
7
6
5
4
3
2
1
0
Reserved
AVID stop pixel LSB
Active video cropping stop pixel LSB [1:0]: The number of pixels of active video must be an even number. The
TVP5150A decoder updates the AVID stop values only when this register is written to.
AVID stop [9:0] (combined registers 13h and 14h):
01 1111 1111 = 511
00 0000 0001 = 1
00 0000 0000 = 0 (default) (see Figure 2−3 and Figure 2−4)
11 1111 1111 = −1
10 0000 0000 = −512
2−26