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参数资料
| 型号： | M37221M8-XXXSP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42 |
| 封装： | 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42 |
| 文件页数： | 78/114页 |
| 文件大小： | 1653K |
| 代理商： | M37221M8-XXXSP |
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65
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
M37221M4/M8/MA–XXXSP, M37221M6–XXXSP/FP
M37221EASP/FP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
8.11.4 Memory for OSD
There are 2 types of memory for OSD : OSD ROM (addresses
1000016 to 11FFF16) used to store character dot data and OSD RAM
(addresses 060016 to 06B716) used to specify the characters and
colors to be displayed.
Fig. 8.11.11 Character Font Data Storing Address
(1) OSD ROM (addresses 1000016 to 11FFF16)
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 8.11.3) 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] [horizontal (left side) 8 dots] data of display characters are
stored in addresses 1000016 to 107FF16 and 1100016 to 117FF16 ;
the [vertical 16 dots] [horizontal (right side) 4 dots] data of display
characters are stored in addresses 1080016 to 10FFF16 and 1180016
to 11FFF16 (refer to Figure 8.11.11). Note however that the high-
order 4 bits in the data to be written to addresses 1080016 to 10FFF16
and 1180016 to 11FFF16 must be set to “1” (by writing data “FX16”).
Data of the character font is specified shown in Figure 8.11.11.
10XX016
+80016
or
11XX016
+80016
00
10
00
01
00
10
00
01
00
10
00
01
00
10
00
01
00
0
1
01
11
00
1
00
10
00
10
00
10
00
01
00
10
0
1
11
00
0
00
0
00
0
00
0
00
0
00
0
00
0
10
0
10
0
10
0
01
0
01
0
01
0
00
0
00
0
00
0
11
1
11
1
11
1
11
1
11
1
11
1
11
1
11
1
11
1
11
1
11
1
11
1
11
1
11
1
11
1
b7
b0
b7
b0
b3
0
00
10XXF16
+80016
or
11XXF16
+80016
10XX016
or
11XX016
10XXF16
or
11XXF16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M37221MAH-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37221MAH-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37224M3 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37224M3-050SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
| M37224M3-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER |
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