Datasheet

90E36A POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Register 29 April 2, 2013
6 REGISTER
6.1 REGISTER LIST
Table-4 Register List
Register
Address Register Name
Read/Write
Type Functional Description Comment Page
Status and Special Register
00H SoftReset W Software Reset P36
01H SysStatus0 R/C System Status 0 P38
02H SysStatus1 R/C System Status 1 P38
03H FuncEn0 R/W Function Enable 0 P40
04H FuncEn1 R/W Function Enable 1 P40
07H ZXConfig R/W Zero-Crossing Configuration Configuration of ZX0/1/2 pins’ source P42
08H SagTh R/W Voltage Sag Threshold P42
09H PhaseLossTh R/W Voltage Phase Losing Threshold Similar to Voltage Sag Threshold register P42
0AH INWarnTh0 R/W
Threshold for calculated (Ia + Ib +Ic) N line rms
current
Check SysStatus0/1 register. P43
0BH INWarnTh1 R/W
Threshold for sampled (from ADC) N line rms
current
Check SysStatus0/1 register. P43
0CH THDNUTh R/W Voltage THD Warning Threshold Check SysStatus0/1 register. P43
0DH THDNITh R/W Current THD Warning Threshold Check SysStatus0/1 register. P43
0EH DMACtrl R/W DMA Mode Interface Control DMA mode interface control P44
0FH LastSPIData R Last Read/ Write SPI Value
Refer to 4.2.2 Reliability Enhancement Fea-
ture
P44
Low Power Mode Register
10H DetectCtrl R/W Current Detect Control P45
11H DetectTh1 R/W Channel 1 current threshold in Detection mode P46
12H DetectTh2 R/W Channel 2 current threshold in Detection mode P46
13H DetectTh3 R/W Channel 3 current threshold in Detection mode P47
14H PMOffsetA R/W
Ioffset for phase A in Partial Measurement
mode
P47
15H PMOffsetB R/W
Ioffset for phase B in Partial Measurement
mode
P47
16H
PMOffsetC R/W
Ioffset for phase C in Partial Measurement
mode
P47
17H PMPGA R/W
PGAgain Configuration in Partial Measurement
mode
P48
18H PMIrmsA R Irms for phase A in Partial Measurement mode P48
19H PMIrmsB R Irms for phase B in Partial Measurement mode P48
1AH PMIrmsC R Irms for phase C in Partial Measurement mode P48
1BH PMConfig R/W
Measure configuration in Partial Measurement
mode
P49
1CH PMAvgSamples R/W
Number of 8K samples to be averaged in RMS/
mean computation
P49
1DH PMIrmsLSB R LSB bits of PMRrms[A/B/C]
It returns MSB of the mean measurement
data in Mean value test
P49