Cs5484, 68 average active power offset (p1, 69 average reactive offset (q1 – Cirrus Logic CS5484 User Manual
Page 60: 70 ac offset for current (i1, 71 temperature gain (t
CS5484
60
DS981F3
6.6.68 Average Active Power Offset (P1
OFF
, P2
OFF
)
–
Page 16, Address 36, 43
Default = 0x00 0000
Average Active Power offset P1
OFF
(P2
OFF
) is added to averaged power to yield P1
AVG
(P2
AVG
) register re-
sults. It can be used to reduce systematic energy errors. These are two's complement values in the range of
-1.0
value 1.0, with the binary point to the right of the MSB.
6.6.69 Average Reactive Offset (Q1
OFF
, Q2
OFF
) – Page 16, Address 38, 45
Default = 0x00 0000
Average Reactive Power offset Q1
OFF
(Q2
OFF
) is added to averaged reactive power to yield Q1
AVG
(Q2
AVG
)
register results. It can be used to reduce systematic energy errors. These are two's complement values in the
range of -1.0
value 1.0, with the binary point to the right of the MSB.
6.6.70 AC Offset for Current (I1
ACOFF
, I2
ACOFF
)
–
Page 16, Address 37, 44
Default = 0x00 0000
AC offset registers I1
ACOFF
and I2
ACOFF
are initialized to zero on reset. They are used to reduce systematic
errors in the RMS results.These are unsigned values in the range of 0
value 1.0, with the binary point to
the left of the MSB.
6.6.71 Temperature Gain (T
GAIN
)
– Page 16, Address 54
Default = 0x 06 B716
Register T
GAIN
is used to scale the Temperature register (T), and is an unsigned fixed-point value in the range
of 0.0
value256.0, with the binary point to the right of bit 16.
Register T can be rescaled by the application using the T
GAIN
and T
OFF
registers. Refer to section
on page 65 for more information.
MSB
LSB
-(2
0
)
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
.....
2
-17
2
-18
2
-19
2
-20
2
-21
2
-22
2
-23
MSB
LSB
-(2
0
)
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
.....
2
-17
2
-18
2
-19
2
-20
2
-21
2
-22
2
-23
MSB
LSB
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
2
-8
.....
2
-18
2
-19
2
-20
2
-21
2
-22
2
-23
2
-24
MSB
LSB
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
.....
2
-10
2
-11
2
-12
2
-13
2
-14
2
-15
2
-16