ade7566 Analog Devices, Inc., ade7566 Datasheet - Page 27
ade7566
Manufacturer Part Number
ade7566
Description
Single-phase Energy Measurement Ic With 8052 Mcu, Rtc, And Lcd Driver
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADE7566.pdf
(136 pages)
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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 (see Table 68).
IPSME ADDR. 0xEC
IPSMF ADDR. 0xF8
IEIP2 ADDR. 0xA9
EVDCIN
FVDCIN
EVADC
FVADC
ESAG
EBSO
EPSR
FSAG
FBSO
FPSR
EBAT
FBAT
RESERVED
NOT INVOLVED IN PSM INTERRUPT SIGNAL CHAIN
FPSR
EPSR
RESERVED
FPSM
PTI
RESERVED
ESAG
FSAG
Figure 31. PSM Interrupt Sources
FPSM
EPSM
Rev. 0 | Page 27 of 136
RESERVED
RESERVED
PSI
The Power Management Interrupt Enable SFR (IPSME, 0xEC)
controls the events that result in a PSM interrupt (see Table 20).
Figure 31 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 IPSMF flag
register.
EVADC
FVADC
EADE
TRUE?
PENDING PSM
INTERRUPT
EBAT
FBAT
ETI
EBSO
FBSO
EPSM
ADE7566/ADE7569
EVDCIN
FVDCIN
ESI