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參數(shù)資料
| 型號(hào)： | M37274MA |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | Single Chip 8 Bits Microcomputer(8位單片機(jī)) |
| 中文描述： | 單芯片8位單片機(jī)（8位單片機(jī)） |
| 文件頁數(shù)： | 104/131頁 |
| 文件大?。?/td> | 2049K |
| 代理商： | M37274MA |
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104
MITSUBISHI MICROCOMPUTERS
M37274MA-XXXSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
PRELIMINARY
Notice: This is not a final specification.
Some paramentic limits are subject to change.
Structure of Register
The figure of each register structure describes its functions, contents
at reset, and attributes as follows:
Note :
The following registers are the mask version’s registers.
Values immediately after reset release
Bit attributes
(Note 1)
(Note 2)
Bits
2:
Bit attributesThe attributes of control register bits are classified into 3 types : read-only, write-only
and read and write. In the figure, these attributes are represented as follows :
RRead
WWrite
: Bit in which nothing is assigned
Notes 1:
Values immediately after reset release
0“0” after reset release
1“1” after reset release
Indeterminate after reset release
Read enabled
Read disabled
Write enabled
Write disabled
“0” can be set by software, but “1”
cannot be set.
8
b7b6 b5b4b3 b2b1b0
1
B
After reset
R W
0
CPU Mode Register
0, 1
2
3, 4
1
Name
Functions
Processor mode bits
(CM0, CM1)
0 0: Single-chip mode
0 1:
1 0: Not available
1 1:
Fix these bits to “1.”
0
Stack page selection
bit (Note) (CM2)
1
b1 b0
0: 0 page
1: 1 page
0
0
5
Nothing is assigned. This bit is write disable bit.
When this bit is read out, the value is “0.”
Clock switch bits
(CM6, CM7)
0 0: f(X
IN
) = 8 MHz
0 1: f(X
IN
) = 12 MHz
1 0: f(X
IN
) = 16 MHz
1 1: Do not set
6, 7
0
b7 b6
CPU mode register (CPUM) (CM) [Address FB
16
]
R W
R W
R W
R W
R W
1
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| M37274MA-052SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37274MA-053SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37274MA-082SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37274MA-084SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37274MA-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
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