17 avid stop pixel register, 18 hsync start pixel register, 19 hsync stop pixel register – Texas Instruments TVP5147M1PFP User Manual
Page 46: 20 vsync start line register
Functional Description
38
SLES140A—March 2007
TVP5147M1PFP
2.11.17 AVID Stop Pixel Register
Subaddress
18h−19h
Default
325h
Subaddress
7
6
5
4
3
2
1
0
18h
AVID stop [7:0]
19h
Reserved
AVID stop [9:8]
AVID stop [9:0]: AVID stop pixel number. The number of pixels of active video must be an even number. This
is an absolute pixel location from HSYNC start pixel 0.
NTSC 601
NTSC Sqp
PAL 601
PAL Sqp
default
805 (325h)
726 (2D6h)
808 (328h)
696 (2B8h)
The TVP5147M1 decoder updates the AVID stop only when the AVID stop MSB byte is written to. If the user
changes these registers, then the TVP5147M1 decoder retains values in different modes until this device
resets. The AVID start pixel register also controls the position of the EAV code.
2.11.18 HSYNC Start Pixel Register
Subaddress
1Ah−1Bh
Default
000h
Subaddress
7
6
5
4
3
2
1
0
1Ah
HSYNC start [7:0]
1Bh
Reserved
HSYNC start [9:8]
HSYNC start pixel [9:0]: This is an absolute pixel location from HSYNC start pixel 0.
The TVP5147M1 decoder updates the HSYNC start only when the HSYNC start MSB is written to. If the user
changes these registers, then the TVP5147M1 decoder retains values in different modes until this device
resets.
2.11.19 HSYNC Stop Pixel Register
Subaddress
1Ch−1Dh
Default
040h
Subaddress
7
6
5
4
3
2
1
0
1Ch
HSYNC stop [7:0]
1Dh
Reserved
HSYNC stop [9:8]
HSYNC stop [9:0]: This is an absolute pixel location from HSYNC start pixel 0.
The TVP5147M1 decoder updates the HSYNC stop only when the HSYNC stop MSB is written to. If the user
changes these registers, then the TVP5147M1 decoder retains values in different modes until this device
resets.
2.11.20 VSYNC Start Line Register
Subaddress
1Eh−1Fh
Default
004h
Subaddress
7
6
5
4
3
2
1
0
1Eh
VSYNC start [7:0]
1Fh
Reserved
VSYNC start [9:8]
VSYNC start [9:0]: This is an absolute line number. The TVP5147M1 decoder updates the VSYNC start only
when the VSYNC start MSB is written to. If the user changes these registers, then the TVP5147M1 decoder
retains values in different modes until this decoder resets.
NTSC: default 004h PAL: default 001h