ams Datasheet

Page 29

[v1-00] 2014-Oct-31

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AS5047P − Application Information

15. Read reg(0x0016) to reg(0x0019)

→ Read register step2

16. Comparison of written content (settings and angle) with

content of read register step2.

Mandatory: guard band test (Removing of Bit0 of

Settings1 from the comparison is mandatory. Bit0 is

preprogrammed)

17. New power ON cycle, if point 16 is correct. If point 16

successful and the device is incorrectly programmed. A

reprogramming is not allowed!

18. Read reg(0x0016) to reg(0x0019)

→ Read register step3

19. Comparision of written content (settings and angle)

with content of read register step3(Removing of Bit0 of

Settings1 from the comparison is mandatory. Bit0 is

preprogrammed).

20. If point 19 is correct, the programming was successful.

If point 19 fails, device is incorrectly programmed. A

reprogramming is not allowed

1. Guard band test:

- Restricted to temperature range: 25 °C ± 20 °C

- Right after the programming procedure (max. 1 hour with same

- Conditions 25°C ± 20 °C)

- Same VDD voltage

The guard band test is only for the verification of the burned OTP fuses during the programming sequence.

A use of the guard band in other cases is not allowed.