CS5490 datasheet(38/57 Pages) CIRRUS

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CS5490

DS982F3

6.6.10 Phase Sequence Detection and Control (PSDC) – Page 0, Address 48

Default = 0x00 0000

DONE

Indicates valid count values reside in PSCNT[6:0].

0 = Invalid values in PSCNT[6:0]. (Default)

1 = Valid values in PSCNT[6:0].

PSCNT[6:0]

Registers the number of OWR samples from the start time to the time when the next

zero crossing is detected.

[15:6]

Reserved.

DIR

Set the zero-crossing edge direction which will stop PSCNT count.

0 = Stop count at negative to positive zero-crossing - Rising Edge. (Default)

1 = Stop count at positive to negative zero-crossing - Falling Edge.

CODE[4:0]

Write 10110 to this location to enable the phase sequence detection.

6.6.11 Checksum of Critical Registers (RegChk) – Page 16, Address 1

Default = 0x00 0000

This register contains the checksum of critical registers.

DONE

PSCNT[6]

PSCNT[5]

PSCNT[4]

PSCNT[3]

PSCNT[2]

PSCNT[1]

PSCNT[0]

654

DIR

CODE[4]

CODE[3]

CODE[2]

CODE[1]

CODE[0]

MSB

LSB

223

222

221

220

219

218

217

216

.....

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