參數(shù)資料
型號: 4250
英文描述: Low-Cost, 2.7V to 5.5V Temperature Switches in a SOT23
中文描述: 4250組數(shù)據(jù)表數(shù)據(jù)表652K/NOV.30.97
文件頁數(shù): 21/59頁
文件大小: 652K
代理商: 4250
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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