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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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SH7041A Arkusz danych(PDF) 589 Page - Renesas Technology Corp |
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SH7041A Arkusz danych(HTML) 589 Page - Renesas Technology Corp |
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589 / 923 page  551 ADDRB ADDRA Channel 3 Channel 2 Channel 1 Channel 0 ADST ADF ADDRC ADDRD Sampling 1 Sampling 2 Sampling 3 A/D conversion 1 A/D conversion 2 A/D conversion 3 Conversion standby Conversion standby Conversion standby Conversion standby Conversion standby Conversion standby Conversion standby Automatic clear Set to 1 by software Conversion result 1 Conversion result 2 Conversion result 3 Figure 15.6 A/D Converter Operation Example (Group-Single Mode) 15.4.4 Group-Scan Mode Choose group-scan mode when doing repeated A/D conversions for multiple channels. This is useful when doing continuous monitoring of the analog inputs of multiple channels. When the ADST bit is set to 1, A/D conversion is started according to the designated conversion start conditions. The ADST bit is held to 1 until 0 cleared by software. A/D conversion for the selected input channels is repeated during that interval. The ADF flag is set to 1 at the completion of the first conversions of all the designated input channels. At this point, if the ADIE bit is set to 1, an ADI interrupt request is issued, and the A/D converter is temporarily halted. With the A/D converter in stop mode due to an ADI interrupt request, conversion is restarted when the ADF flag is cleared to 0. The ADF flag is cleared by reading the ADCSR, then writing a 0. |
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