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M38C31M7AXXXFS 数据表(PDF) 93 Page - Renesas Technology Corp

部件名 M38C31M7AXXXFS
功能描述  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  224 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

M38C31M7AXXXFS 数据表(HTML) 93 Page - Renesas Technology Corp

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2-28
38C3 Group User’s Manual
APPLICATION
2.2 Timer
(5)
Timer application example 4: Output of IGBT control signal
Outline: Synchronized variable PWM signal is output in “H” term.
When a signal is input to INT0 pin before timer underflow during “L” output, timer restarts.
Specifications: •The signal, of which “H” level width is 5
µs and cycle is 20 µs, is output from the
P50/TAOUT pin.
However, if “H” is input to INT0 pin during “L” output, timer restarts from “H” output.
<Example>
When f(XIN) = 8 MHz, the count source is 125 ns.
Figure 2.2.26 shows the timers connection and setting of division ratio; Figure 2.2.27 shows the
relevant registers setting; Figure 2.2.28 shows the control procedure.
Fig. 2.2.26 Timers connection and setting of division ratios
f(XIN) = 8 MHz
20
µs
1/11/160
Timer A restart
Timer A count source
selection bit
Timer A
Timer A interrupt
request bit
125 ns



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