Cs5490, 29 voltage swell level (vswell, Page 18, address 47 – Cirrus Logic CS5490 User Manual
Page 45
CS5490
DS982F3
45
6.6.29 Voltage Swell Level (VSwell
LEVEL
) – Page 18, Address 47
Default = 0x7F FFFF
Voltage swell level, VSwell
LEVEL
, establishes an input level above which a swell event is triggered.
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. Negative values are not used.
6.6.30 Instantaneous Current (I) – Page 16, Address 2
Default = 0x00 0000
I contains instantaneous current measurements for current channel.
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.
6.6.31 Instantaneous Voltage (V) – Page 16, Address 3
Default = 0x00 0000
V contains instantaneous voltage measurements for voltage channel.
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.
6.6.32 Instantaneous Active Power (P) – Page 16, Address 4
Default = 0x00 0000
P contains instantaneous power measurements for current and voltage channels.
Values in registers I and V are multiplied to generate this value. 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
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
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