M37151MC-XXXFP datasheet(61/139 Pages) RENESAS

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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER

and ON-SCREEN DISPLAY CONTROLLER

M37151M6/M8/MA/MC/MF-XXXFP, M37151EFFP

MITSUBISHI MICROCOMPUTERS

Rev. 1.0

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

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

Parameter

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).

Display mode

CC mode

(Closed caption mode)

OSD mode (Border OFF)

(On-screen display mode)

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