m37280eksp Mitsumi Electronics, Corp., m37280eksp Datasheet - Page 85

• Manufacturer Part Number: m37280eksp
• Description: Single-chip 8-bit Cmos Microcomputer With Closed Caption Decoder And On-screen Display Controller
• Manufacturer: Mitsumi Electronics, Corp.

(2) OSD RAM (addresses 0700
The OSD RAM for SPRITE consisting of 3 planes, is assigned to
addresses 0700
pallet selection bit and the color pallet of each dot is determined from
among 8 kinds.
The OSD RAM for character is allocated at addresses 0800
0FFF
part, color code 1 specification part, and color code 2 specification
part for each block. Tables 2.11.4 and 2.11.5 show the contents of
the OSD RAM.
For example, to display 1 character position (the left edge) in block 1,
write the character code in address 0800
0820
RAM is shown in Figure 12.11.23.
Note : For the layer 2 ’s OSD mode block with dot size of 1.5T
Rev. 1.0
16
16
1.5T
with ordinary block (blocks with dot size of 1T
layer 1). Accordingly, maximum 22 characters are only displayed in 1
block. Blocks with dot size of 1T
the layer 1
However, note the following:
• In OSD mode
• In CDOSD mode
The RAM data for the 3nth character does not effect the display.
Any character data can be stored here (refer to Figure 12.11.22).
, and write color code 2 at 0840
, and is divided into a display character code specification
The character is not displayed, and only the left 1/3 part of the 22nd
character back ground is displayed in the 22nd’s character area.
When not displaying this background, set transparent for background.
The character is not displayed, and color pallet color specified by bit
3 to 6 of color code 1 can be output in the 22nd’s character area (left
1/3 part).
C
1H, the 3nth (n = 1 to 10) character is skipped as compared
16
to 07A7
16
. Each plane corresponds to each color
16
C
to 07A7
1/2H and 1T
16
. The structure of the OSD
16
16
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
, write color code 1 at
C
, 0800
1/2H, or blocks on the
C
16
1H, or blocks on
to 0FFF
C
M37280MF–XXXSP, M37280MK–XXXSP
1/2H and
16
16
)
to
and ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
M37280EKSP
85