參數(shù)資料
型號： M37281MKH-XXXSP
廠商： Renesas Technology Corp.
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
中文描述： 單芯片8位CMOS微機(jī)隱蔽字幕解碼器和屏幕顯示控制器
文件頁數(shù)： 85/172頁
文件大?。?/td> 1319K
代理商： M37281MKH-XXXSP
Rev.1.01 2003.07.16 page 85 of 170
M37281MAH
–
XXXSP,M37281MFH
–
XXXSP,M37281MKH
–
XXXSP, M37281EKSP
(2) OSD RAM (addresses 0700
16
to 07A7
16
, 0800
16
to 0FFF
16
)
The OSD RAM for SPRITE consisting of 3 planes, is assigned to
addresses 0700
16
to 07A7
16
. Each plane corresponds to each color
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
16
to
0FFF
16
, and is divided into a display character code specification
part, color code 1 specification part, and color code 2 specification
part for each block. Tables 8.11.5 and 8.11.6 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
16
, write color code 1 at
0820
16
, and write color code 2 at 0840
16
. The structure of the OSD
RAM is shown in Figure 8.11.23.
Note :
For the layer 2
’
s OSD mode block with dot size of 1.5T
C
1/2H and
1.5T
C
1H, the 3nth (n = 1 to 10) character is skipped as compared
with ordinary block (blocks with dot size of 1T
C
1/2H, or blocks on the
layer 1). Accordingly, maximum 22 characters are only displayed in 1
block. Blocks with dot size of 1T
C
1/2H and 1T
C
1H, or blocks on
the layer 1
However, note the following:
In OSD mode
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.
In CDOSD mode
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).
The RAM data for the 3nth character does not effect the display.
Any character data can be stored here (refer to Figure 8.11.22).
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