M37212 Mitsubishi, M37212 Datasheet - Page 63

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

8.10.4 Memory for OSD
There are 2 types of memory for OSD : OSD ROM (addresses
10000
(addresses 0600
colors to be displayed.
Fig. 8.10.11 Character Font Data Storing Address
Rev. 1.0
16
to 11FFF
16
16
10XX0
11XX0
10XXF
11XXF
) used to store character dot data and OSD RAM
to 06B7
or
or
16
16
16
16
16
) used to specify the characters and
b7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
1
0
0
0
0
0
M37212M4/M8–XXXSP, M37212M6–XXXSP/FP
0
0
0
1
1
0
0
0
0
0
1
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
1
0
0
0
0
0
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
0
0
0
1
1
0
0
0
0
0
1
0
0
0
0
0
b0
0
0
0
0
0
1
1
1
0
0
1
0
0
0
0
0
10XX0
11XX0
10XXF
11XXF
(1) OSD ROM (addresses 10000
The dot pattern data for OSD characters is stored in OSD ROM. To
specify the kinds of the character font, it is necessary to write the
character code (Table 8.10.3) into the OSD RAM.
The OSD ROM has a capacity of 8K bytes. Since 32 bytes are re-
quired for 1 character data, the ROM can stores up to 256 kinds of
characters.
The OSD ROM space is broadly divided into 2 areas. The [vertical
16 dots]
stored in addresses 10000
the [vertical 16 dots]
characters are stored in addresses 10800
to 11FFF
order 4 bits in the data to be written to addresses 10800
and 11800
Data of the character font is specified shown in Figure 8.10.11.
+800
+800
+800
+800
or
or
16
16
16
16
16
16
16
16
16
16
b7
[horizontal (left side) 8 dots] data of display characters are
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
(refer to Figure 8.10.11). Note however that the high-
to 11FFF
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
with ON-SCREEN DISPLAY CONTROLLER
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
16
MITSUBISHI MICROCOMPUTERS
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
[horizontal (right side) 4 dots] data of display
must be set to “1” (by writing data “FX
b3
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
16
to 107FF
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
M37212EFSP/FP
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
b0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
16
and 11000
to 10FFF
16
to 11FFF
16
16
16
to 117FF
and 11800
to 10FFF
16
16
16
”).
63
16
16
)
;