19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 908 of 1658
REJ09B0261-0100
19.3.41 Plane n Start Position Y Register (PnSPYR) (n = 1 to 6) The plane n start position Y registers (PnSPYR, n = 1 to 6) set the vertical start position of plane n in memory. 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/WR/WR/WR/WR/WR/W R/W
OOOOOOOOOOOOOOO O
——
PnSPY
01234567891011121315 14Bit:
Initial value:
Bit Bit Name
Initial
Value R/W
Internal
Update Description
31 to 16 All 0 R Reserved
These bits are always read as 0. The write value
should always be 0.
15 to 0 PnSPY Undefined R/W Yes Plane n Start Position Y
The vertical start position of plane n in memory
should be set in raster line units.
Note: Setting a value exceeding {twice the plane
n wrap-around start position Y
(PnWASPY) + twice the plane n wrap-
around memory width Y (PnWAMWY)} is
prohibited.