Datasheet

45
SLES084C − August 2007 TVP5146
2.11.24 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 TVP5146 decoder updates the VSYNC
start only when the VSYNC 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.
NTSC: default 004h, PAL: default 001h
2.11.25 VSYNC Stop Line Register
Subaddress 20h–21h
Default 007h
Subaddress 7 6 5 4 3 2 1 0
20h VSYNC stop [7:0]
21h Reserved VSYNC stop [9:8]
VSYNC stop [9:0]: This is an absolute line number. The TVP5146 decoder updates the VSYNC
stop only when the VSYNC stop MSB byte is written to. If the user changes these registers, the
TVP5146 decoder retains values in different modes until this decoder resets.
NTSC: default 007h, PAL: default 004h
2.11.26 VBLK Start Line Register
Subaddress 22h–23h
Default 001h
Subaddress 7 6 5 4 3 2 1 0
22h VBLK start [7:0]
23h Reserved VBLK start [9:8]
VBLK start [9:0]: This is an absolute line number. The TVP5146 decoder updates the VBLK start
line only when the VBLK start MSB byte is written to. If the user changes these registers, the
TVP5146 decoder retains values in different modes until this decoder resets.
NTSC: default 001h, PAL: default 623 (26Fh)
2.11.27 VBLK Stop Line Register
Subaddress 24h–25h
Default 015h
Subaddress 7 6 5 4 3 2 1 0
24h VBLK stop [7:0]
25h Reserved VBLK stop [9:8]
VBLK stop [9:0]: This is an absolute line number. The TVP5146 decoder updates the VBLK stop
only when the VBLK stop MSB byte is written to. If the user changes these registers, then the
TVP5146 decoder retains values in different modes until this decoder resets.
NTSC: default 21 (15h), PAL: default 23 (17h)