參數(shù)資料
型號: M34570EDFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO36
封裝: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-36
文件頁數(shù): 66/69頁
文件大?。?/td> 687K
代理商: M34570EDFP
System Clock
69
Under
development
Preliminary Specifications REV.1.02
Specifications in this manual are tentative and subject to change.
Mitsubishi Microcomputers
M32C/83 group
SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
Figure 1.8.4. MCD Register
MCD0
MCD1
MCD2
MCD3
MCD4
Main clock division register1
Main clock division
select bit2,4
1 0 0 1 0 : Divide-by-1(no devision)
mode
0 0 0 1 0 : Divide-by-2 mode
0 0 0 1 1 : Divide-by-3 mode
0 0 1 0 0 : Divide-by-4 mode
0 0 1 1 0 : Divide-by-6 mode
0 1 0 0 0 : Divide-by-8 mode
0 1 0 1 0 : Divide-by-10 mode
0 1 1 0 0 : Divide-by-12 mode
0 1 1 1 0 : Divide-by-14 mode
0 0 0 0 0 : Divide-by-16 mode
Nothing is assigned. When write, should set to "0".
When read, its content is indeterminate.
Symbol
Address
When reset
MCD
000C16
XXX010002
Function
Bit name
Bit
symbol
RW
Notes :
1. The PRC0 bit in the PRCR register is set to "1" (write enable) before rewriting the MCD register.
2. While entering to stop mode or low power consumption mode, the MCD4 to MCD0 bits are set to
"010002"(divide-by-8 mode).
Divide-by-8 mode cannot be entered even if the CM05 bit in the CM0 register is set to "1"(XIN-
XOUT stopped) in ring oscillator mode.
3. Avoid setting a bit combination except the above.
4. CAN-associated registers should be accessed with setting the MCD4 to MCD0 bits to "100102" (no
division mode).
(Note 3)
b4 b3 b2 b1 b0
b7
b6
b5
b4
b3
b2
b1
b0
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