參數(shù)資料
型號: M38001M8-XXXSS
廠商: Mitsubishi Electric Corporation
英文描述: Quad Low-Noise High-Speed Precision Operational Amplifier 16-SOIC
中文描述: 8位單片機(jī)
文件頁數(shù): 60/173頁
文件大?。?/td> 4203K
代理商: M38001M8-XXXSS
APPLICATION
2.2 Timer
2-12
3800 GROUP USER’S MANUAL
(2) Timer application example 1 : Clock function (measurement of 250 ms)
Outline :
The input clock is divided by a timer so that the clock counts up every 250 ms.
Specifications :
The clock f(X
IN
) = 4.19 MHz (2
22
Hz) is divided by a timer.
The clock is counted at intervals of 250 ms by the Timer X interrupt.
Figure 2.2.10 shows a connection of timers and a setting of division ratios, Figures 2.2.11 show a
setting of related registers, and Figure 2.2.12 shows a control procedure.
Fig. 2.2.10 Connection of timers and setting of division ratios [Clock function]
Timer X interrupt request bit
The clock is divided by 4 by software.
1/16
0 or 1
1/256
1/256
f(X
IN
) =
4.19 MHz
Fixed
Prescaler X
Timer X
250 ms
0 : No interrupt request
1 : Interrupt request
1/4
1 second
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