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ADE7880 数据表(PDF) 22 Page - Analog Devices |
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ADE7880 数据表(HTML) 22 Page - Analog Devices |
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22 / 104 page ![]() ADE7880 Data Sheet Rev. A | Page 22 of 104 Table 11. Recommended Actions When Changing Power Modes Next Power Mode Initial Power Mode Before Setting Next Power Mode PSM0 PSM1 PSM2 PSM3 Stop DSP by setting the Run register = 0x0000 Current mean absolute values (mav) computed immediately Disable HSDC by clearing Bit 6 (HSDCEN) to 0 in the CONFIG register xIMAV registers can be accessed immediately Mask interrupts by setting MASK0 = 0x0 and MASK1 = 0x0 PSM0 Erase interrupt status flags in the STATUS0 and STATUS1 registers Wait until the IRQ0 or IRQ1 pin is triggered accordingly No action necessary Wait until the IRQ1 pin is triggered low PSM1 No action necessary Poll the STATUS1 register until Bit 15 (RSTDONE) is set to 1 Wait until the IRQ0 or IRQ1 pin is triggered accordingly No action necessary Wait until the IRQ1 pin is triggered low Wait until the IRQ1 pin triggered low Poll the STATUS1 register until Bit 15 (RSTDONE) is set to 1 Current mean absolute values compute at this moment PSM2 No action necessary xIMAV registers may be accessed from this moment No action necessary Wait until the IRQ1 pin is triggered low Wait until the IRQ1 pin is triggered low Poll the STATUS1 register until Bit 15 (RSTDONE) is set to 1 Current mav circuit begins computations at this time PSM3 No action necessary xIMAV registers can be accessed from this moment Wait until the IRQ0 or IRQ1 pin is triggered accordingly |
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