CS5463 datasheet(34/44 Pages) CIRRUS

34 / 44 page

CS5463

DS678PP1

6.1.23 Fundamental Reactive Power Register ( QH )

Address: 31

(read only)

Fundamental Reactive Power (QH) is calculated by performing a discrete Fourier transform (DFT) at the relevant

frequency on the V and I channels. The value is represented in two's complement notation and in the range of

-1.0

≤ QH < 1.0, with the binary point to the right of the MSB.

6.1.24 Page Register

Address: 31 (write only)

Default = 0x00

Determines which register page the serial port will access.

6.2 Page 1 Registers

6.2.1 Temperature Gain Register ( TGain )

Address: 2

Default = 0x34E2E7 = 26.443169

Sets the temperature channel gain. Temperature gain (TGain) is utilized to convert from one temperature scale

to another. The Celsius scale (oC) is the default. Values will be within in the range of 0

≤ TGain < 128. The value

is represented in unsigned notation, with the binary point to the right of bit 7th MSB. See Section 5.7 On-chip

Temperature Sensor

on page 19.

6.2.2 Temperature Offset Register ( TOff )

Address: 3

Default = 0xF3E7D0 = -0.094488

Temperature offset (Toff) is used to remove the temperature channel’s offset at the zero degree reading. Values

are represented in two's complement notation and in the range of -1.0

≤ Toff < 1.0, with the binary point to the

right of the MSB.

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

MSB

LSB

2-1

.....

2-11

2-12

2-13

2-14

2-15

2-16

2-17

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

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