19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 901 of 1658
REJ09B0261-0100
Bit Bit Name
Initial
Value R/W
Internal
Update Description
7 to 0 PnALPHA Undefined R/W Yes Plane n Blending Ratio
The alpha value (α) which is the blend ratio for
plane n should be set.
Blending result = (α × plane n + (H'100 α) ×
lower plane)/ H'100
Note: Blending result, α, plane n, and lower
plane in the above formula are all 8-bit
data.
19.3.34 Plane n Display Size X Register (PnDSXR) (n = 1 to 6) The plane n display size X registers (PnDSXR, n = 1 to 6) set the display size in the horizontal direction of plane n. 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/WRRRRR
OOOOOOOOOOO
00000
PnDSX
— —
01234567891011121315 14Bit:
Initial value:
Bit Bit Name
Initial
Value R/W
Internal
Update Description
31 to 11 All 0 R Reserved
These bits are always read as 0. The write value
should always be 0.
10 to 0 PnDSX Undefined R/W Yes Plane n Display Size X
The horizontal-direction display size of plane n
should be set in dot clock units.
Note: When YC is set by the PnDDF bit in
PnMR, this value should be set to an even
number.