M37151 Datasheet, PDF (61/139 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37151M6/M8/MA/MC/MF-XXXFP, M37151EFFP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
8.11 OSD FUNCTIONS
Table 8.11.1 outlines the OSD functions.
This microcomputer incorporates an OSD circuit of 32 characters ✕
2 lines. There are also 2 display modes which are selected in block
units. The display modes are selected by bits 0 and 1 of block con-
trol register i (i = 1 and 2).
The features of each mode are described below.
Table 8.11.1 Features of Each Display Mode
Parameter
CC mode
(Closed caption mode)
Display mode
OSD mode (Border OFF)
(On-screen display mode)
Number of display characters
32 characters ✕ 2 lines
Dot structure
16 ✕ 26 dots (Character display area : 16 ✕ 20 dots)
16 ✕ 20 dots
Kinds of characters
254 kinds
Kinds of character sizes
1 kinds
8 kinds
Pre-divide ratio (See note)
✕ 2 (fixed)
✕ 2, ✕ 3
Dot size
1TC ✕ 1/2H
1TC ✕ 1/2H, 1TC ✕ 1H, 2TC ✕ 2H, 3TC ✕ 3H
Attribute
Smooth italic, under line, flash
Border (black)
Character font coloring
1 screen : 8 kinds (per character unit)
Character background coloring
1 screen : 8 kinds (per character unit)
OSD output
R, G, B
Raster coloring
Possible (per character unit)
Function
Auto solid space function
Window function
Display position
Horizontal: 128 levels, Vertical: 512 levels
Display expansion (multiline display)
Possible
Notes 1: The divide ratio of the frequency divider (the pre-divide circuit) is referred as “pre-divide ratio” hereafter.
2: The character size is specified with dot size and pre-divide ratio (refer to 8.11.2 Dot Size).
Rev. 1.0
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