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4250 データシート(PDF) 21 Page - Renesas Technology Corp |
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4250 データシート(HTML) 21 Page - Renesas Technology Corp |
21 / 59 page 20 MITSUBISHI MICROCOMPUTERS 4250 Group SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER Fig. 18 Auto-reload function FF16 n 0016 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 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). |
同様の部品番号 - 4250 |
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同様の説明 - 4250 |
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