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AS5030

Datasheet - Application In formatio n

8.4 Programming Verification

After programming, the programmed OTP bits may be verified in two ways:

- By digital verification:

commands.

- By analog verification:

a sequence of the bits in the OTP register. A voltage of <500mV indicates a correctly programmed bit (“1”) while a voltage level between 2.2V

and 3.5V indicates a correctly unprogrammed bit (“0”). Any voltage level in between indicates improper programming.

Figure 23. Analog OTP Verification

8.5 AS5030 Status Indicators

Refer to 16-bit Read Command on page 23.

8.5.1 C2 Status Bit

This bit represents the hardware connection of the C2 configuration pin (#15) to determine, which hardware configuration is selected for the

AS5030 in question.

C2 = low: pin C2 is ‘low’, indicating that the AS5030 is in 3-wire mode or a member of a 2-wire daisy chain connection (except the last)

C2 = high: pin C2 is ‘high’, indicating that the AS5030 is in 2-wire mode and/or the last member of a 2-wire daisy chain connection

8.5.2 Lock Status Bit

The Lock signal indicates the ADC lock status. If Lock = low (ADC unlocked), the angle information is invalid.

To determine a valid angular signal at best performance, the following indicators should be set:

Lock = 1

Note:

reduced due to the out of range condition of the magnetic field strength.

100n

CS

CLK

DI O

+5 V

VDD

VSS

VSS

C 2

VDD

VDD

13

11

10

12

15

C1

VSS

3

14

I/O

Output

Output

PROG

2

V

Micro

Controller

AS5030