An366 – Cirrus Logic AN366 User Manual
Page 13
AN366
AN366REV2
13
START
CONTINUOUS
CONVERSION
0xD5
CLEAR
DRDY
READ IRMS,
VRMS, PAVG
DRDY
SET?
POWER UP
RESTORE
CONFIGURATION
and CONTROL
REGISTERS
From NVM
RESTORE
GAIN
REGISTERS
From NVM
RESTORE
OFFSET
REGISTERS
From NVM
RESTORE
POFF and QOFF
REGISTERS
CLEAR
DRDY
CALCULATE
VOLTS = FS_Voltage · (VRMS/0.6)
AMPS = FS_Current · (VRMS/0.6)
WATTS = FS_Scale_Power · (VRMS/0.36)
RESET
VALID
REGISTER
CHECKSUM
?
SINGLE
CONVERSION
YES
NO
YES
NO
Figure 7. Normal Field Flow
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