參數(shù)資料
型號: M38257M8-XXXFP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù): 38/70頁
文件大?。?/td> 994K
代理商: M38257M8-XXXFP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3825 Group
43
Fig. 43 Clock generating circuit block diagram
WIT
instruction
STP instruction
Timing
φ
(Internal clock)
S
R
Q
STP instruction
S
R
Q
Main clock stop bit
S
R
Q
Timer 2
Timer 1
1/2
1/4
XIN
XOUT
XCOUT
XCIN
Interrupt request
Reset
Port XC switch bit
“1”“0”
Timer 1 count
source selection
bit
Timer 2 count
source selection
bit
Low-speed mode
Middle-/High-speed mode
Internal system clock selection bit
(Note)
Middle-speed mode
High-speed mode
or Low-speed mode
Note: When using the low-speed mode, set the port XC switch bit to “1”.
Main clock division ratio selection bit
“1”
“0”
“1”
“0”
“1”
“0”
Interrupt disable flag I
1/2
“1”
“0”
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