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参数资料
| 型号： | M306H7MG-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| 封装： | 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100 |
| 文件页数： | 114/180页 |
| 文件大小： | 2820K |
| 代理商： | M306H7MG-XXXFP |
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Rev.2.10
Oct 25, 2006
Page 37 of 326
REJ03B0152-0210
M306H7MG-XXXFP/MC-XXXFP/FGFP
4. CLOCK GENERATION CIRCUIT
4.4.3
Stop Mode
In stop mode, all oscillator circuits are turned off, so are the CPU clock and the peripheral function clocks.
Therefore, the CPU and the peripheral functions clocked by these clocks stop operating. The least amount of
power is consumed in this mode. If the voltage applied to Vcc pins is VRAM or more, the internal RAM is
retained.
However, the peripheral functions clocked by external signals keep operating. The following interrupts can be
used to exit stop mode.
NMI interrupt
INT interrupt
Timer A, Timer B interrupt (when counting external pulses in event counter mode)
Serial I/O interrupt (when external clock is selected)
The internal oscillator circuit of expansion function (Data acquisition / humming function) stops oscillation
when expansion register XTAL_VCO, PDC_VCO_ON, VPS_VCO_ON = "L".
Entering Stop Mode
The microcomputer is placed into stop mode by setting the CM10 bit of CM1 register to “1” (all clocks turned
off). At the same time, the CM06 bit of CM0 register is set to “1” (divide-by-8 mode) and the CM15 bit of
CM1 register is set to “1” (main clock oscillator circuit drive capability high).
Pin Status in Stop Mode
Table 4.4 lists pin status during stop mode
Exiting Stop Mode
The microcomputer is moved out of stop mode by a hardware reset, NMI interrupt or peripheral function
interrupt.
If the microcomputer is to be moved out of stop mode by a hardware reset or NMI interrupt, set the peripheral
function interrupt priority ILVL2 to ILVL0 bits to “0002” (interrupts disable) before setting the CM10 bit to
“1”.
If the microcomputer is to be moved out of stop mode by a peripheral function interrupt, set up the following
before setting the CM10 bit to “1”.
(1) In the ILVL2 to ILVL0 bits of interrupt control register, set the interrupt priority level of the peripheral
function interrupt to be used to exit stop mode.
Also, for all of the peripheral function interrupts not used to exit stop mode, set the ILVL2 to ILVL0 bits to
“0002”.
(2) Set the I flag to “1”.
(3) Enable the peripheral function whose interrupt is to be used to exit stop mode.
In this case, when an interrupt request is generated and the CPU clock is thereby turned on, an interrupt
service routine is executed.
Which CPU clock will be used after exiting stop mode by a peripheral function or NMI interrupt is determined
by the CPU clock that was on when the microcomputer was placed into stop mode as follows:
If the CPU clock before entering stop mode was derived from the sub clock: sub clock
If the CPU clock before entering stop mode was derived from the main clock: main clock divide-by-8
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| M306K7F8LRP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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| M306K9T2-CPE | 功能描述:M-SUPPORT TOOL RoHS:否 类别:编程器，开发系统 >> 内电路编程器、仿真器以及调试器 系列:- 产品变化通告:Development Systems Discontinuation 19/Jul/2010 标准包装:1 系列:* 类型:* 适用于相关产品:* 所含物品:* |
| M306KAFCLRP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Description |
| M306N0FG | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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