User guide

CS5480
DS980F3 45
6.6.11 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.
6.6.12 Checksum of Critical Registers (RegChk) – Page 16, Address 1
Default = 0x00 0000
This register contains the checksum of critical registers.
23 22 21 20 19 18 17 16
DONE PSCNT[6] PSCNT[5] PSCNT[4] PSCNT[3] PSCNT[2] PSCNT[1] PSCNT[0]
15 14 13 12 11 10 9 8
------ --
765432 10
- - DIR CODE[4] CODE[3] CODE[2] CODE[1] CODE[0]
MSB LSB
2
23
2
22
2
21
2
20
2
19
2
18
2
17
2
16
.....
2
6
2
5
2
4
2
3
2
2
2
1
2
0