ade7854 Analog Devices, Inc., ade7854 Datasheet - Page 18

• Manufacturer Part Number: ade7854
• Description: Poly Phase Multifunction Energy Metering Ic With Neutral Current Measurement
• Manufacturer: Analog Devices, Inc.

ADE7854
Power
Mode
PSM3
Table 9. Recommended actions when changing power modes
Initial
Power
Mode
PSM0
PSM3
State after
software reset
Recommended actions before setting next power
mode
-stop DSP by setting RUN[15:0]=0x0000
-disable HSDC by clearing bit 6 (HSDEN) to 0 in
CONFIG[15:0] register
-mask interrupts by setting in MASK0[31:0]=0x0 and
MASK1[31:0]=0x0
-erase interrupt status flags in STATUS0[31:0] and
STATUS1[31:0] registers
-no action necessary
Registers
Set to
default
Not
available
LPOILVL, CONFIG2
Unchanged
Values set during
PSM0 unchanged
Rev. PrC| Page 18 of 71
Next Power Mode
PSM0
-wait until
-poll STATUS1[31:0] register until
bit 15 (RSTDONE) set to 1
I
Active serial port unchanged if lock
in procedure has been previously
executed
Disabled
2
C/SPI
IRQ
1
pin triggered low
Preliminary Technical Data
PSM3
-no action necessary
Functionality
All circuits are active. DSP is in
idle mode
Internal circuits shut down
Serial ports not available