參數(shù)資料
型號： M30100M3-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP32
封裝： 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件頁數(shù)： 83/164頁
文件大?。?/td> 3302K
代理商： M30100M3-XXXFP
Under
development
Tentative Specifications REV.E1
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
24
Stop Mode, Wait Mode
Pin
States
Port
Retains status before stop mode
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 A-D converter and watchdog timer do not function. However, timer X operate provided that the event
counter mode is set to an external pulse, and UART0 and UART1 function provided an external clock is
selected. Table 1.8.2 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, and the priority level of the interrupt which is not used to cancel
must have been changed to 0 before shifting to stop mode. If returning by an interrupt, that interrupt routine
is executed. If only a hardware reset is used to cancel stop mode, change the priority level of all interrupt to
0, then shift to stop mode.
When shifting from high-speed/medium-speed mode to stop mode or 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.
The stop mode must not be used while operating in the ring oscillator 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 1.8.3 shows the status of the ports in wait mode.
Wait mode is cancelled by a hardware reset or interrupt. If an interrupt is used to cancel wait mode, the
microcomputer restarts using as BCLK, the clock that had been selected when the WAIT instruction was
executed.
Pin
States
Port
Retains status before wait mode
Table 1.8.2. Port status during stop mode
Table 1.8.3. Port status during wait mode
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