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ADE7878 Datasheet(PDF) 23 Page - Analog Devices |
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ADE7878 Datasheet(HTML) 23 Page - Analog Devices |
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23 / 92 page  ADE7878 Rev. 0 | Page 23 of 92 Table 11. Recommended Actions When Changing Power Modes Initial Power Mode Recommended Actions Before Setting Next Power Mode Next Power Mode PSM0 PSM1 PSM2 PSM3 PSM0 Stop DSP by setting Run[15:0] = 0x0000. Current mean absolute values (mav) computed immediately. Wait until the IRQ0 or IRQ1 pin is triggered accordingly. No action necessary. Disable HSDC by clearing Bit 6 (HSDEN) to 0 in the CONFIG[15:0] register. xIMAV[19:0] registers may be accessed immediately. Mask interrupts by setting MASK0[31:0] = 0x0 and MASK1[31:0] = 0x0. Erase interrupt status flags in the STATUS0[31:0] and STATUS1[31:0] registers. PSM1 No action necessary. Wait until the IRQ1 pin is triggered low. Wait until the IRQ0 or IRQ1 pin is triggered accordingly. No action necessary. Poll the STATUS1[31:0] register until Bit 15 (RSTDONE) is set to 1. PSM2 No action necessary. Wait until the IRQ1 pin is triggered low. Wait until the IRQ1 pin triggered low. No action necessary. Poll the STATUS1[31:0] register until Bit 15 (RSTDONE) is set to 1. Current mean absolute values are computed beginning this moment. xIMAV[19:0] registers may be accessed from this moment. PSM3 No action necessary. Wait until the IRQ1 pin is triggered low. Wait until the IRQ1 pin is triggered low. Wait until the IRQ0 or IRQ1 pin is triggered accordingly. Poll the STATUS1[31:0] register until Bit 15 (RSTDONE) is set to 1. Current mav circuit begins computations at this time. xIMAV[19:0] registers can be accessed from this moment. |
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