ADE7569 datasheet(27/136 Pages) AD

tên linh kiện	ADE7569

Giải thích chi tiết về linh kiện	Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver

PDF	136 Pages

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nhà sản xuất	AD [Analog Devices]

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27 / 136 page

Preliminary Technical Data

ADE7566/ADE7569

Rev. PrA | Page 27 of 136

POWER SUPPLY MONITOR INTERRUPT (PSM)

The power supply monitor interrupt (PSM) alerts the 8052 core

of power supply events. The PSM interrupt is disabled by

default. Setting the EPSM bit in the Interrupt Enable and

Priority 2 SFR (IEIP2, 0xA9) enables the PSM interrupt.

The Power Management Interrupt Enable SFR (IPSME, 0xEC)

controls the events that result in a PSM interrupt. Figure 23 is a

diagram illustrating how the PSM interrupt vector is shared

among the PSM interrupt sources. The PSM interrupt flags are

latched and must be cleared by writing to the flag register.

EPSR

FPSR

ESAG

FSAG

EVSW

FVSW

EBAT

FBAT

EBSO

FBSO

EVDCIN

FVDCIN

FPSM

EPSM

TRUE?

PENDING PSM

INTERRUPT

EPSR

RESERVED

ESAG

RESERVED

EVSW

EBAT

EBSO

EVDCIN

FPSR

FPSM

FSAG

RESERVED

FVSW

FBAT

FBSO

FVDCIN

RESERVED

PTI

RESERVED

PSI

EADE

ETI

EPSM

ESI

IPSME ADDR. 0xEC

IPSMF ADDR. 0xF8

IEIP2 ADDR. 0xA9

NOT INVOLVED IN PSM INTERRUPT SIGNAL CHAIN

Figure 23. PSM Interrupt Sources

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