M306V5ME-XXXSP Datasheet, PDF (187/262 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M306V5ME-XXXSP
M306V5EESP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
(2) OSD RAM (OSD RAM for character, addresses 040016 to 0EFF16)
The OSD RAM for character is allocated at addresses 040016 to 0EFF16, and is divided into a display
character code specification part, color code 1 specification part, and color code 2 specification part
for each block. The number of characters for 1 block (32- or 42-character mode) is selected by bit 1 of
the OSD control register 4. Tables 2.16.3 to 2.16.7 show the address map.
For example, to display 1 character position (the left edge) in block 1, write the character code in
address 040016, write color code 1 at 040116, and write color code 2 at 048016. The structure of the
OSD RAM is shown in Figure 2.16.25.
Note : For blocks of the following dot sizes, the 3nth (n = 1 to 14) character is skipped as compared
with ordinary block.
sIn OSDL mode: all dot size.
sIn OSDS and CDOSD modes of layer 2: 1.5Tc ! 1/2H or 1.5Tc ! 1H
Accordingly, maximum 22 characters (32-character mode)/28 characters (42-character mode)
are only displayed in 1 block. Blocks with dot size of 1TC ! 1/2H and 1TC ! 1H, or blocks on the
layer 1. The RAM data for the 3nth character does not effect the display. Any character data can
be stored here. And also, note the following only in 32-character mode. As the character is
displayed in the 28th’s character area in 42-character mode, set ordinarily.
• In OSDS 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 back-
ground, set transparent for character background color.
• In OSDL mode
Set a blank character or a character of transparent color to the 22nd character.
• In CDOSD mode
The character is not displayed, and color palette color specified by bits 3 to 6 of color
code 1 can be output in the 22nd’s character area (left 1/3 part).
Display
sequence _{1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22}
RAM
address ₁
order
2
4
5
7
8
10 11 13 14 16 17 19 20 22 23 25 26 28 29 31 32
• 1.5Tc size block
• OSDL block
Display
sequence ^{1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32}
RAM
address 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
order
• 1Tc size block
Figure 2.16.24 RAM data for 3rd character (in 32-character mode)
Rev. 1.0
187