M37212 Mitsubishi, M37212 Datasheet - Page 52

• Manufacturer Part Number: M37212
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
• Manufacturer: Mitsubishi

8.10 OSD FUNCTIONS
Table 8.10.1 outlines the OSD functions. This microcomputer incor-
porates an OSD control circuit of 24 characters
controlled by the CRT control register. Up to 256 kinds of characters
can be displayed. The colors can be specified for each character and
up to 4 kinds of colors can be displayed on one screen. A combina-
tion of up to 8 colors can be obtained by using each output signal (R,
G, and B).
Characters are displayed in a 12
smooth character patterns (refer to Figure 8.10.1).
The following shows the procedure how to display characters on the
CRT screen.
Table 8.10.1 Features of Each Display Mode
52
Number of display characters
Dot structure
Kinds of characters
Kinds of character sizes
Attribute
Character font coloring
Character background coloring
OSD output
Display position
Display expansion (multiline display)
RAM.
register.
the CRT control register. When this is done, the OSD starts ac-
cording to the input of the V
Write the display character code in OSD RAM.
Specify the display color by using the color register.
Write the color register in which the display color is set in OSD
Specify the vertical position by using the vertical position register.
Specify the character size by using the character size register.
Specify the horizontal position by using the horizontal position
Write the display enable bit to the designated block display flag of
Parameter
SYNC
signal.
16 dots configuration to obtain
M37212M4/M8–XXXSP, M37212M6–XXXSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
2 lines. OSD is
Horizontal: 64 levels, Vertical: 128 levels
1 screen : 8 kinds (per character unit)
1 screen : 8 kinds (per character unit)
24 characters
Border (black)
12
Functions
256 kinds
Possible
R, G, B
3 kinds
16 dots
with ON-SCREEN DISPLAY CONTROLLER
2 lines
MITSUBISHI MICROCOMPUTERS
M37212EFSP/FP
Rev. 1.0