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參數(shù)資料
| 型號： | M37271EF-XXXSP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| 中文描述： | 單芯片8位CMOS微機隱蔽字幕解碼器和屏幕顯示控制器 |
| 文件頁數(shù)： | 83/97頁 |
| 文件大?。?/td> | 1436K |
| 代理商： | M37271EF-XXXSP |
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MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
83
Fig. 96. 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
CM
7
: 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
)
CM
6
: Main clock (X
IN
–X
OUT
) stop bit
0 : Oscillating
1 : Stopped
8MHz oscillating
32kHz oscillating
φ
is stopped (“H”)
Timer operating
8MHz oscillating
32kHz oscillating
f(
φ
) = 4MHz
8MHz stopped
32kHz stopped
φ
is stopped (“H”)
8MHz oscillating
32kHz oscillating
φ
is stopped (“H”)
Timer operating
(Note 3)
8MHz oscillating
32kHz oscillating
f(
φ
) = 16kHz
8MHz stopped
32kHz stopped
φ
is stopped (“H”)
8MHz stopped
32kHz stopped
φ
= stopped (“H”)
8MHz stopped
32kHz oscillating
f(
φ
) = 16kHz
8MHz stopped
32kHz oscillating
φ
is stopped (“H”)
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)
CM
7
= 1
CM
7
= 0
CM
6
= 1
CM
6
= 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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相關代理商/技術參數(shù) |
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|---|---|
| M37271MF | 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 |
| M37271MF-213SP | 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 |
| M37271MF-219SP | 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 |
| M37271MF-220SP | 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 |
| M37271MF-231SP | 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 |
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