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90E21 Datasheet(PDF) 24 Page - Integrated Device Technology

Part # 90E21
Description  Single-Phase High-Performance Wide-Span Energy Metering IC
PDF  57 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

90E21 Datasheet(HTML) 24 Page - Integrated Device Technology

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90E21/22/23/24
SINGLE-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Register
24
January 10, 2012
SmallPMod
Small-Power Mode
LastSPIData
Last Read/Write SPI Value
Address: 04H
Type: Read/Write
Default Value: 0000H
Bit
Name
Description
15 - 0
SmallPMod[15:0]
Small-power mode command.
A987H: small-power mode. The relationship between the register value of L line and N line active/reactive power in small-power
mode and normal mode is:
power in normal mode = power in small-power mode *10*Igain*Ugain /2^42
Others: Normal mode.
Small-power mode is mainly used in the power offset calibration.
Address: 06H
Type: Read
Default Value: 0000H
Bit
Name
Description
15 - 0
LastSPI-
Data[15:0]
This register stores the data that is just read or written through the SPI interface. Refer to Table-9 and Table-10.
15
14
13
12
11
10
9
8
SmallPMod15
SmallPMod14
SmallPMod13
SmallPMod12
SmallPMod11
SmallPMod10
SmallPMod9
SmallPMod8
765
432
1
0
SmallPMod7
SmallPMod6
SmallPMod5
SmallPMod4
SmallPMod3
SmallPMod2
SmallPMod1
SmallPMod0
15
14
13
12
11
10
9
8
LastSPIData15
LastSPIData14
LastSPIData13
LastSPIData12
LastSPIData11
LastSPIData10
LastSPIData9
LastSPIData8
765
432
1
0
LastSPIData7
LastSPIData6
LastSPIData5
LastSPIData4
LastSPIData3
LastSPIData2
LastSPIData1
LastSPIData0



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