CS5467 datasheet(39/46 Pages) CIRRUS

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CS5467

DS714F1

8.4 Page 2 Registers

8.4.1 Voltage Sag and Current Fault Duration (V1SagDUR , V2SagDUR , I1FaultDUR , I2FaultDUR )

Address: 0 (V1SagDUR ), 8 (V2SagDUR ), 4 (I1FaultDUR ), 12 (I2FaultDUR )

Default = 0

Voltage sag duration, V1SagDUR (V2SagDUR) and current fault duration, I1FaultDUR (I2FaultDUR) determine

the count of output word rate (OWR) samples utilized to determine a sag or fault event. These are integers in

the range of 0 to 8,388,607 samples. A value of zero disables the feature.

8.4.2 Voltage Sag and Current Fault Level (V1SagLEVEL , V2SagLEVEL , I1FaultLEVEL , I2FaultLEVEL )

Address: 1 (V1SagLEVEL ), 9 (V2SagLEVEL ), 5 (I1FaultLEVEL ), 13 (I2FaultLEVEL )

Default = 0

Voltage sag level, V1SagLEVEL (V2SagLEVEL ) and current fault level, I1FaultLEVEL (I2FaultLEVEL ) establish

an input level below which a sag or fault is triggered. 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. Negative values are not used.

8.5 Page 5 Register

8.5.1 Temperature Measurement (TMEAS ) – Address: 26

Default = 0

The Temperature Measurement (TMEAS) register is used to cycle-steal voltage channel2 for temperature

measurement. Writing a one to the LSB causes the temperature to be measured and the Temperature register

(T) to be updated.

Refer to 6.13 Temperature Measurement on page 22 for more information.

MSB

LSB

222

221

220

219

218

217

216

.....

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

MSB

LSB

223

222

221

220

219

218

217

216

.....

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