CS5490-ISZR 查看數據表（PDF） - Cirrus Logic

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CS5490-ISZR

Two Channel Energy Measurement IC

Cirrus Logic 

CS5490

6.6.29 Voltage Swell Level (VSwellLEVEL ) – Page 18, Address 47

MSB

LSB

-(20) 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

Default = 0x7F FFFF

Voltage swell level, VSwellLEVEL, 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

MSB

LSB

-(20) 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

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

MSB

LSB

-(20) 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

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

MSB

LSB

-(20) 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

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.

44

DS982F2

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