參數(shù)資料
型號: M306H7MG-XXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù): 37/115頁
文件大小: 3146K
代理商: M306H7MG-XXXFP
Rev.2.10
Oct 25, 2006
Page 28 of 326
REJ03B0152-0210
M306H7MG-XXXFP/MC-XXXFP/FGFP
4. CLOCK GENERATION CIRCUIT
Figure 4.3
CM1 Register
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: When the PM21 bit of PM2 register is set to “1” (clock modification disable), writing to the CM10 bits has no effect.
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
00
RW
(b4-b1)
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