MAXQ3180 Maxim, MAXQ3180 Datasheet - Page 37

• 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

This register designates the threshold of the CFP pulse. This value is used to set the meter constant for the CFP
pulse output. When the CFP pulse accumulator exceeds the value set in this register, the CFP pulse output is activat-
ed and the CFP pulse accumulator is reduced by the amount in this register.
This register designates the width of the CFQ pulse; that is, the duration of the period that the CFQ pulse is in the
active state. This value is given in ADC frame times (about 320μs). The default value of 0x9C (156 decimal) provides
a pulse width of about 50ms.
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Low-Power, Multifunction, Polyphase AFE
______________________________________________________________________________________
31
23
15
15
7
7
30
22
14
14
6
6
29
21
13
13
5
5
CFQ Pulse-Width High Byte
CFQ Pulse-Width Low Byte
28
20
12
12
4
4
THR1 Byte 3
THR1 Byte 2
THR1 Byte 1
THR1 Byte 0
0x9C
0x00
0x10
0x00
0x00
0x00
CFP Pulse Threshold (THR1) (0x022)
CFQ Pulse Width (PLS2_WD) (0x026)
27
19
11
11
3
3
26
18
10
10
2
2
25
17
9
1
9
1
24
16
8
0
8
0
37