90E21 Datasheet, PDF (34/57 Pages) Integrated Device Technology – Single-Phase High-Performance Wide-Span Energy Metering IC

90E21/22/23/24
SINGLE-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
IoffsetL
L Line Current Offset
Address: 35H
Type: Read/Write
Default Value: 0000H
15
14
IoffsetL15
IoffsetL14
7
6
IoffsetL7
IoffsetL6
13
IoffsetL13
5
IoffsetL5
12
IoffsetL12
4
IoffsetL4
11
IoffsetL11
3
IoffsetL3
10
IoffsetL10
2
IoffsetL2
9
IoffsetL9
1
IoffsetL1
Bit
15 - 0
Name
Description
IoffsetL[15:0] L line current offset. For calculation method, please refer to IDT application note AN-641.
IoffsetN
N Line Current Offset
Address: 36H
Type: Read/Write
Default Value: 0000H
15
14
IoffsetN15
IoffsetN14
7
6
IoffsetN7
IoffsetN6
13
IoffsetN13
5
IoffsetN5
12
IoffsetN12
4
IoffsetN4
11
IoffsetN11
3
IoffsetN3
10
IoffsetN10
2
IoffsetN2
9
IoffsetN9
1
IoffsetN1
Bit
15 - 0
Name
Description
IoffsetN[15:0] N line current offset. For calculation method, please refer to IDT application note AN-641.
PoffsetL
L Line Active Power Offset
Address: 37H
Type: Read/Write
Default Value: 0000H
15
14
PoffsetL15
PoffsetL14
7
6
PoffsetL7
PoffsetL6
13
PoffsetL13
5
PoffsetL5
12
PoffsetL12
4
PoffsetL4
11
PoffsetL11
3
PoffsetL3
10
PoffsetL10
2
PoffsetL2
9
PoffsetL9
1
PoffsetL1
Bit
15 - 0
Name
Description
PoffsetL[15:0]
L line active power offset.
Complement, MSB is the sign bit. For calculation method, please refer to IDT application note AN-641.
8
IoffsetL8
0
IoffsetL0
8
IoffsetN8
0
IoffsetN0
8
PoffsetL8
0
PoffsetL0
Register
34
January 10, 2012