參數(shù)資料
型號： M37273MFH-XXXSP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP52
封裝： 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-52
文件頁數(shù)： 127/130頁
文件大小： 1661K
代理商： M37273MFH-XXXSP
95
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37273MFH–XXXSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
Fig.8.14.4 State Transitions of System Clock
Reset
The example assumes that 8 MHz is being applied to the XINpin and 32 kHz to the XCINpin. The
φindicates the internal clock.
WIT instruction
CM7 : Internal system clock selection bit
0 : XIN-XOUT selected (high-speed mode)
1 : XCIN-XCOUT selected (low-speed mode)
CPU mode register
(Address : 00FB16)
CM6 : Main clock (XIN—XOUT) stop bit
0 : Oscillating
1 : Stopped
8 MHz oscillating
32 kHz oscillating
φ is stopped ( H )
Timer operating
8 MHz oscillating
32 kHz oscillating
f(
φ) = 4 MHz
8 MHz stopped
32 kHz stopped
φ is stopped ( H )
8 MHz oscillating
32 kHz oscillating
φ is stopped ( H )
Timer operating
(See note 3)
8 MHz oscillating
32 kHz oscillating
f(
φ) = 16kHz
8 MHz stopped
32 kHz stopped
φ is stopped ( H )
8 MHz stopped
32 kHz stopped
φ = stopped ( H )
8 MHz stopped
32 kHz oscillating
f(
φ) = 16 kHz
8 MHz stopped
32 kHz oscillating
φ is stopped ( H )
Timer operating
(See note 3)
Interrupt
STP instruction
Interrupt (See note 1)
WIT instruction
Interrupt
WIT instruction
Interrupt
STP instruction
Interrupt (See note 2)
STP instruction
Interrupt (See 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 4 ms is automatically generated by timer 3 and timer 4.
2: The delay after the STP state ends is approximately 1s.
3: When the internal clock
φ divided by 8 is used as the timer count source, the frequency of the count source is 2 kHz.
The program must
allow time for 8 MHz
oscillation to stabilize
High-speed operation start
mode
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37273MF-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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