參數(shù)資料
型號: M34250M2
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機(jī)的CMOS
文件頁數(shù): 20/58頁
文件大?。?/td> 331K
代理商: M34250M2
MITSUBISHI
ELECTRIC
20
MITSUBISHI MICROCOMPUTERS
4250 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
Fig. 18 Auto-reload function
FF
16
n
00
16
n : Counter initial value
Count starts
Reload
Reload
1st underflow
2nd underflow
n+1 count
n+1 count
Time
An interrupt occurs or
a skip instruction is executed.
Timer 1 interrupt
request flag
T
TIMERS
The 4250 Group has the programmable timer.
Programmable timer
The programmable timer has a reload register and enables
the frequency dividing ratio to be set. It is decremented from a
setting value n. When it underflows (count to n + 1), a timer
interrupt request flag is set to “1,” new data is loaded from the
reload register, and count continues (auto-reload function).
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