M37280MF Datasheet, PDF (72/178 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

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MITSUBISHI MICROCOMPUTERS
M37280MF–XXXSP, M37280MK–XXXSP
M37280EKSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Layer 3
Sprite
Block 9
Block 10
Block 15
Block 16
Layer 2
Block 1
Block 2
Block 7
Block 8
Layer 1
Note : When layer 1 and SPRITE display overlay
each other, only OUT2 in layer 1 is output.
Layer 1
A
SPRITE
(except transparent)
A'
SPRITE
R, G, B of layer 1
OUT2 of layer 1
Fig. 12.11.5 Triple Layer OSD
Display example of layer 1 = “HELLO,” layer 2 = “CH5”
HELL^CO^H5
HELLO^CH5
HELL^CO^H5
Logical sum (OR) of
layer 1’s color and
layer 2’s color (See note)
Bit 7 = “0,” bit 6 = “0”
Layer 1’s color has priority
Bit 7 = “0”, bit 6 = “1”
Layer 2’s color has priority
Bit 7 = “1,” bit 6 = “0”
Note: Layer mixing is not logical sum (OR) of colors, but that of each bit of
color pallet register.
Example) When logical sum (OR) is performed on color pallet 1 (00012) and color
pallet 2 (00102), the color set to color pallet 3 (00112) is output, regardless of
color pallets 1 and 2 contents.
Fig. 12.11.6 Display Example of Triple Layer OSD
Rev. 1.0
72