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參數(shù)資料
| 型號： | 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)： | 86/131頁 |
| 文件大小： | 2049K |
| 代理商： | M37274MA |
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86
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37274MA-XXXSP
PRELIMINARY
Notice: This is not a final specification.
Some paramentic limits are subject to change.
MITSUBISHI MICROCOMPUTERS
Fig. 98. State Transitions of System Clock
Reset
The example assumes that 8 MHz is being applied to the X
IN
pin and 32 kHz to the X
CIN
pin. The
φ
indicates the internal clock.
WIT instruction
CM7 : Internal system clock selection bit
0 : X
IN
-X
OUT
selected (high-speed mode)
1 : X
CIN
-X
COUT
selected (low-speed mode)
CPU mode register
(Address : 00FB
16
)
CM6 : Main clock (X
IN
–X
OUT
) stop bit
0 : Oscillating
1 : Stopped
8MHz oscillating
32kHz oscillating
φ
is stopped (HIGH)
Timer operating
8MHz oscillating
32kHz oscillating
f(
φ
) = 4MHz
8MHz stopped
32kHz stopped
φ
is stopped (HIGH)
8MHz oscillating
32kHz oscillating
φ
is stopped (HIGH)
Timer operating
(Note 3)
8MHz oscillating
32kHz oscillating
f(
φ
) = 16kHz
8MHz stopped
32kHz stopped
φ
is stopped (HIGH)
8MHz stopped
32kHz stopped
φ
= stopped (HIGH )
8MHz stopped
32kHz oscillating
f(
φ
) = 16kHz
8MHz stopped
32kHz oscillating
φ
is stopped (HIGH)
Timer operating
(Note 3)
Interrupt
STP instruction
Interrupt (Note 1)
WIT instruction
Interrupt
WIT instruction
Interrupt
STP instruction
Interrupt (Note 2)
STP instruction
Interrupt (Note 2)
CM7 = 1
CM7 = 0
CM6 = 1
CM6 = 0
External INT,
timer interrupt,
or SI/O interrupt
External INT
Notes 1:
When the STP state is ended, a delay of approximately 8ms is automatically generated by timer 3 and timer 4.
2:
The delay after the STP state ends is approximately 2s.
3:
When the internal clock
φ
divided by 8 is used as the timer count source, the frequency of the count source is 2kHz.
The program must
allow time for 8MHz
oscillation to stabilize
High-speed operation
start mode
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相關(guān)代理商/技術(shù)參數(shù) |
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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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