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: 51/77页
文件大小: 2650K
代理商: M306V8FJFP
M306V8FJFP
Rev.1.31
Apr 18, 2005
page 53 of 363
REJ03B0082-0131
System clock control register 1 (Note 1)
Symbol
Address
After reset
CM1
000716
001000002
Bit
name
Function
Bit symbol
b7
b6
b5
b4
b3
b2
b1
b0
CM10
All clock stop control bit
(Notes 4, 5)
0 : Clock on
1 : All clocks off (stop mode)
Note 1: Write to this register after setting the PRC0 bit of PRCR register to “1” (write enable).
Note 2: When entering stop mode from high or middle speed mode, or when the CM05 bit is set to “1” (main clock turned off) in low
speed mode, the CM15 bit is set to “1” (drive capability high).
Note 3: Effective when the CM06 bit is “0” (CM16 and CM17 bits enable).
Note 4: If the CM10 bit is “1” (stop mode), XOUT goes “H” and the internal feedback resistor is disconnected. The XCIN and XCOUT
pins are placed in the high-impedance state.
Note 5: Effective when CM07 bit is “0” .
CM15
XIN-XOUT drive capacity
select bit (Note 2)
0 : LOW
1 : HIGH
RW
CM16
CM17
Reserved bit
Must set to
“0”
Main clock division
select bit 1 (Note 3)
0 0 : No division mode
0 1 : Division by 2 mode
1 0 : Division by 4 mode
1 1 : Division by 16 mode
b7 b6
0
00
RW
(b4-b1)
0
Figure 5.3. CM1 Register
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