MAXQ3180 Maxim, MAXQ3180 Datasheet - Page 90

• Manufacturer Part Number: MAXQ3180
• Description: The MAXQ3180 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load
• Manufacturer: Maxim

Low-Power, Multifunction, Polyphase AFE
On every DSP cycle, the contents of the X.ACTF register are tested, and, if negative, absolute values are added to
this register. When this register overflows, the ANFOV bit in the X.EFOVER register is set.
On every DSP cycle, the contents of the X.REAF register are tested, and, if positive, are added to this register. When
this register overflows, the RPFOV bit in the X.EFOVER register is set.
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31
23
15
31
23
15
7
7
Energy, Fundamental, Reactive Positive, Phase X = A/B/C (X.ERFPOS)
Energy, Fundamental, Real Negative, Phase X = A/B/C (X.EAFNEG)
30
22
14
30
22
14
6
6
29
21
13
29
21
13
5
5
Reactive Energy Byte 3
Reactive Energy Byte 2
Reactive Energy Byte 1
Reactive Energy Byte 0
Real Energy Byte 3
Real Energy Byte 2
Real Energy Byte 1
Real Energy Byte 0
28
20
12
28
20
12
4
4
27
19
11
27
19
11
3
3
(A: 0x200, B: 0x2EC, C: 0x3D8)
(A: 0x204, B: 0x2F0, C: 0x3DC)
26
18
10
26
18
10
2
2
25
17
25
17
9
1
9
1
24
16
24
16
8
0
8
0