MAXQ3180 Maxim, MAXQ3180 Datasheet - Page 47

• 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

On every DSP cycle, the contents of the X.REA register are tested, and, if negative, absolute values are added to
this register. When this register overflows, the RNOV bit in the X.EOVER register is set.
On every DSP cycle, the contents of the X.APP register are added to this register. When this register overflows, the
SOV bit in the X.EOVER register is set.
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Low-Power, Multifunction, Polyphase AFE
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31
23
15
31
23
15
7
7
Energy, Apparent, Phase X = A/B/C (X.ES) (A: 0x1F8, B: 0x2E4, C: 0x3D0)
30
22
14
30
22
14
6
6
29
21
13
29
21
13
5
5
Energy, Reactive Negative, Phase X = A/B/C (X.ERNEG)
Apparent Energy Byte 3
Apparent Energy Byte 2
Apparent Energy Byte 1
Apparent Energy Byte 0
Reactive Energy Byte 3
Reactive Energy Byte 2
Reactive Energy Byte 1
Reactive Energy Byte 0
28
20
12
28
20
12
4
4
27
19
11
27
19
11
3
3
(A: 0x1F4, B: 0x2E0, C: 0x3CC)
26
18
10
26
18
10
2
2
25
17
25
17
9
1
9
1
24
16
24
16
8
0
8
0
47