90E32 Datasheet, PDF (48/71 Pages) Integrated Device Technology – Poly-Phase High-Performance Wide-Span Energy Metering IC

90E32
POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
PMConfig
Measure Configuration in Partial Measurement mode
Address: 1BH
Type: Read/Write
Default Value: 0000H
Bit
Name
Description
15
-
Reserved.
14
ReMeasure This bit is ‘1’-write-only. Write ‘1’ to this bit will trigger another measurement cycle.
This bit configures start of measurement whether starts from zero crossing point.
13
MeasureStartZX 0: Measurement start immediately (default)
1: Measurement start from zero-crossing point
This bit indicates the measurement type.
12
MeasureType 0: RMS measurement (default)
1: Mean Value (DC Average) measurement
11-1
-
Reserved.
This bit indicates the measure status. This bit is read-only.
0
PMBusy 0: Measurement done (default)
1: Measurement in progress
PMAvgSamples
Number of 8K Samples to be Averaged
Address: 1CH
Type: Read
Default Value: 00A0H
Bit
Name
15:0
-
Description
Number of 8K samples to be averaged in RMS/mean computation.
PMIrmsLSB
LSB bits of PMRrms[A/B/C]
Address: 1DH
Type: Read
Default Value: 0000H
Bit
Name
15:12
-
11:8
IrmsCLSB
7:4
IrmsBLSB
3:0
IrmsALSB
Reserved.
Description
These bits indicate LSB of the corresponding phase RMS measurement result if the MeasureType bit (b12, PMConfig) =0.
These bits indicate MSB of the corresponding phase mean measurement result if the MeasureType bit (b12, PMConfig) =1.
Register
48
December 9, 2011