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參數(shù)資料
| 型號(hào)： | M30218MC-XXXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 77/161頁(yè) |
| 文件大?。?/td> | 2043K |
| 代理商： | M30218MC-XXXXFP |
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Under
development
Tentative Specifications REV.A
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
22
Clock output
Clock Output
The clock output function select bit (bit 0,1 at address 000616) allows you to choose the clock from f8, f32, or
fc to be output from the P97/DA0/CLKOUT/DIMOUT pin. When the WAIT peripheral function clock stop bit
(bit 2 at address 000616) is set to “1”, the output of f8 and f32 stop by executing of WAIT instruction.
Stop Mode
Writing “1” to the all-clock stop control bit (bit 0 at address 000716) stops all oscillation and the microcom-
puter enters stop mode. In stop mode, the content of the internal RAM is retained provided that VCC re-
mains above 2V.
Because the oscillation of BCLK, f1 to f32, fc, fC32, and fAD stops in stop mode, peripheral functions such as
the fluorescent display function, serial I/O 2, A-D converter and watchdog timer do not function. However,
timer A and timer B operate provided that the event counter mode is set to an external pulse, and UART0
and UART2 functions provided an external clock is selected. Table WA-2 shows the status of the ports in
stop mode.
Stop mode is cancelled by a hardware reset or an interrupt. If an interrupt is to be used to cancel stop mode,
that interrupt must first have been enabled. If returning by an interrupt, that interrupt routine is executed.
When shifting from high-speed/medium-speed mode to stop mode and at a reset, the main clock division
select bit 0 (bit 6 at address 000616) is set to “1”. When shifting from low-speed/low power dissipation mode
to stop mode, the value before stop mode is retained.
Table WA-2. Port status during stop mode
Pin
States
Port
Retains status before stop mode
CLKOUT
When fC selected
“H”
When f8, f32 selected
Retains status before stop mode
Wait Mode
When a WAIT instruction is executed, BCLK stops and the microcomputer enters the wait mode. In this mode,
oscillation continues but BCLK and watchdog timer stop. Writing “1” to the WAIT peripheral function clock
stop bit and executing a WAIT instruction stops the clock being supplied to the internal peripheral functions,
allowing power dissipation to be reduced. Table WA-3 shows the status of the ports in wait mode.
Wait mode is cancelled by a hardware reset or an interrupt. If an interrupt is used to cancel wait mode, the
microcomputer restarts from the interrupt routine using as BCLK, the clock that had been selected when the
WAIT instruction was executed.
Table WA-3. Port status during wait mode
Pin
States
Port
Retains status before wait mode
CLKOUT
When fC selected
Does not stop
When f8, f32 selected
Does not stop when the WAIT
peripheral function clock stop bit is
“0”. (Note)
When the WAIT peripheral function clock
stop bit is “1”, the status immediately prior
to entering wait mode is maintained.
Note: Attention that reducing the power dissipation is impossible.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M3021E8F2-AXXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M3021E8F4-AXXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M3021E8F6-AXXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M3021E8F8-AXXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M3021E8FA-AXXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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