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M38C31M7AXXXFS 数据表(PDF) 93 Page - Renesas Technology Corp |
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M38C31M7AXXXFS 数据表(HTML) 93 Page - Renesas Technology Corp |
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93 / 224 page ![]() 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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