19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 871 of 1658
REJ09B0261-0100
19.3.16 Vertical Sync Point Register (VSPR) The vertical sync point register (VSPR) sets the start position of the vertical sync signal in raster line units. The value is retained during power-on reset and manual reset.
R/W:
Internal update:
R/W:
Internal update:
161718192021222324252627282931 30Bit:
Initial value:
RRRRRRRRRRRRRRRR
0000000000000000
R/WR/WR/WR/WR/WR/WR/WR/WR/WR/WRRRRRR
OOOOOOOOOO
000000
VSP
— —
01234567891011121315 14Bit:
Initial value:
Bit Bit Name
Initial
Value R/W
Internal
Update Description
31 to 10 All 0 R Reserved
These bits are always read as 0. The write value
should always be 0.
9 to 0 VSP Undefined R/W Yes Vertical Sync Point
The start position of the vertical sync signal
should be set in raster line units.
When in TV sync mode, this register should be
set such that the VSYNC falling edge set
position in this register is the same as or later
than the EXVSYNC falling edge.