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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HD404339FS датащи(PDF) 24 Page - Renesas Technology Corp |
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HD404339FS датащи(HTML) 24 Page - Renesas Technology Corp |
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24 / 80 page  HD404339 Series 22 The MCU automatically provides an oscillation stabilization period t RC when operation switches from watch mode to active mode. The interrupt frame period T and one of three values for t RC can be selected with the miscellaneous register (MIS: $00C), as listed in figure 14. Operation can switch directly from subactive mode to active mode, as illustrated in figure 15. In this case, the transition time T D obeys the following relationship. t RC < TD < T + t RC Bit Initial value Read/Write Bit name 3 0 W MIS3 2 0 W MIS2 0 0 W MIS0 1 0 W MIS1 Miscellaneous register (MIS: $00C) MIS1 0 MIS0 T*1 0 0.24414 ms tRC*1 0.12207 ms 0.24414 ms*2 7.8125 ms 62.5 ms Oscillation Circuit Conditions External clock input Ceramic oscillator 0 1 1 1 0 1 15.625 ms 125 ms Not used — Notes: 1. 2. The values of T and tRC are applied when a 32.768-kHz crystal oscillator is used. The value is applied only when direct transfer operation is used. Buffer control. Refer to figure 24. MIS3 MIS2 Crystal oscillator Figure 14 Miscellaneous Register |
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