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| 型號(hào)： | M30240M4-XXXFP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, MROM, MICROCONTROLLER, PQFP80 |
| 封裝： | 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁(yè)數(shù)： | 40/125頁(yè) |
| 文件大?。?/td> | 753K |
| 代理商： | M30240M4-XXXFP |
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Mitsubishi microcomputers
M16C / 24 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
23
CONFIDENTIAL
Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change
Software Reset
When the RESET pin level = “L”, all ports change to input mode (floating.) Table 3 shows the status of
the other pins while the RESET pin level is “L”.
2.6 Software Reset
Writing "1" to bit 3 of processor mode register 0 (address 000416) applies a (software) reset to the
microcomputer. A software reset has almost the same effect as a hardware reset. The contents of
internal RAM are preserved.
2.7 Clock-Generating Circuit
The clock-generating circuit contains one oscillator circuit that supplies the operating clock sources to
the CPU and internal peripheral units.Example of oscillator circuit
Figure 11 shows some examples of the main clock circuit, one using an oscillator connected to the
circuit, and the other one using an externally derived clock for input. Circuit constants in Figure 11 vary
with each oscillator used. Use circuit constant values recommended by the oscillator manfacturer.
Figure 11:
Examples of clock source
Table 3:
Main clock-generating circuits
Functions
Main clock-generating circuit
Use of clock
CPU’s operating clock source
Internal peripheral units’
operating clock source
Usable oscillator
Ceramic or crystal oscillator
Pins to connect oscillator
XIN, XOUT
Oscillation stop/restart function
Available
Oscillator status immediately after reset
Oscillating
Microcomputer
(Built-in feedback resistor)
XIN
XOUT
Externally derived clock
Open
Vcc
Vss
Microcomputer
(Built-in feedback resistor)
XIN
XOUT
Rd
CIN
COUT
(Note)
Note: Insert a damping resistor if required. The resistance will vary depending on the oscillator and the oscillation drive
capacity setting. Use the value recommended by the maker of the oscillator.
When the oscillation drive capacity is set to low, check that oscillation is stable.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M30240M5 | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M5-XXXFP | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M6 | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M6-XXXFP | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M7 | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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