Cirrus Logic CS5484 - Manual (Page 58)

CS5484
58 DS981F3
6.6.60 Temperature (T) – Page 16, Address 27
Default = 0x00 0000
T contains results from the on-chip temperature measurement.
By default, T uses the Celsius scale and is a two's complement value in the range of -128.0 value128.0
(°C), with the binary point to the right of bit 16.
T can be rescaled by the application using the T
GAIN
and T
OFF
registers.
6.6.61 Total Active Power (P
SUM
) – Page 16, Address 29
Default = 0x00 0000
P
SUM
= P1
AVG
+P2
AVG
This is a two's complement value in the range of -1.0 value1.0, with the binary point to the right of the MSB.
6.6.62 Total Apparent Power (S
SUM
) – Page 16, Address 30
Default = 0x00 0000
S
SUM
= S1+S2
This is an unsigned value in the range of 0.0 value1.0, with the binary point to the right of the MSB.
6.6.63 Total Reactive Power (Q
SUM
) – Page 16, Address 31
Default = 0x00 0000
Q
SUM
= Q1
AVG
+Q2
AVG
This is a two's complement value in the range of -1.0  value1.0, with the binary point to the right of the MSB.
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
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
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