Cs5480, 44 rms current 1 (i1, Page 16, address 6 – Cirrus Logic CS5480 User Manual
Page 55: 45 rms voltage 1 (v1, Page 16, address 7
CS5480
DS980F3
55
6.6.44 RMS Current 1 (I1
RMS
) – Page 16, Address 6
Default = 0x00 0000
I1
RMS
contains the root mean square (RMS) values of I1, calculated during each low-rate interval.
This is an unsigned value in the range of 0
value1.0, with the binary point to the left of the MSB.
6.6.45 RMS Voltage 1 (V1
RMS
) – Page 16, Address 7
Default = 0x00 0000
V1
RMS
contains the root mean square (RMS) value of V1, calculated during each low-rate interval.
This is an unsigned value in the range of 0
value1.0, with the binary point to the left of the MSB.
6.6.46 Instantaneous Current 2 (I2) – Page 16, Address 8
Default = 0x00 0000
I2 contains instantaneous current measurements for current channel 2.
This is a two's complement value in the range of -1.0
value1.0, with the binary point to the right of the MSB.
6.6.47 Instantaneous Voltage 2 (V2) – Page 16, Address 9
Default = 0x00 0000
V2 contains instantaneous voltage measurements for voltage channel 1.
This is a two's complement value in the range of -1.0
value1.0, with the binary point to the right of the MSB.
6.6.48 Instantaneous Active Power 2 (P2) – Page 16, Address 10
Default = 0x00 0000
P2 contains instantaneous power measurements for current and voltage channels 2.
Values in registers I2 and V are multiplied to generate this value. This is a two's complement value in the range
of -1.0
value1.0, with the binary point to the right of the MSB.
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
-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
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
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