参数资料
型号: M306V8FJFP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP116
封装: 20 X 20 MM, 0.65 MM PITCH, PLASTIC, LQFP-116
文件页数: 60/77页
文件大小: 2650K
代理商: M306V8FJFP
M306V8FJFP
Rev.1.31
Apr 18, 2005
page 61 of 363
REJ03B0082-0131
Modes
CM1 register
CM17, CM16
CM0 register
CM07
CM06
CM05
CM04
High-speed mode
002
00
0
Medium-
speed
mode
012
00
0
102
00
0
divided by 2
01
0
112
00
0
Low-speed mode
1
0
1
Low power dissipation mode
1
1(Note 1)
1
divided by 4
divided by 8
divided by 16
Note 1: When the CM05 bit is set to “1” (main clock turned off) in low-speed mode, the mode goes
to low power dissipation mode and CM06 bit is set to “1” (divided by 8 mode) simultaneously.
1(Note 1)
(2) Wait Mode
In wait mode, the CPU clock is turned off, so are the CPU (because operated by the CPU clock) and the
watchdog timer. Because the main clock and sub clock, all are on, the peripheral functions using these
clocks keep operating.
Peripheral Function Clock Stop Function
If the CM02 bit is “1” (peripheral function clocks turned off during wait mode), the f1, f2, f8, f32, f1SIO,
f8SIO, f32SIO and fAD clocks are turned off when in wait mode, with the power consumption reduced
that much. However, fC32 remains on.
Entering Wait Mode
The microcomputer is placed into wait mode by executing the WAIT instruction.
Pin Status During Wait Mode
Table 5.3 lists pin status during wait mode
Exiting Wait Mode
The microcomputer is moved out of wait mode by a hardware reset or peripheral function interrupt.
If the microcomputer is to be moved out of exit wait mode by a hardware reset, set the peripheral
function interrupt priority ILVL2 to ILVL0 bits to “0002” (interrupts disabled) before executing the WAIT
instruction.
The peripheral function interrupts are affected by the CM02 bit. If CM02 bit is “0” (peripheral function
clocks not turned off during wait mode), all peripheral function interrupts can be used to exit wait
mode. If CM02 bit is “1” (peripheral function clocks turned off during wait mode), the peripheral func-
tions using the peripheral function clocks stop operating, so that only the peripheral functions clocked
by external signals can be used to exit wait mode.
Table 5.2. Setting Clock Related Bit and Modes
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