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AS5130

Datasheet - Detailed Descr i pti on

By Digital Verification: This is simply done by sending a READ OTP command (#0FH, Refer to Table 10). The structure of this register is the

same as for the OTP PROG or OTP WRITE commands.

By Analog Verification: By sending an ANALOG OTP READ command (#09H), pin PROG becomes an output, sending an analog voltage with

each clock, representing 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 14. Analog OTP Verification

below. Only one single bit can be overwritten with a logic HI. An improper fusing cannot be made undone.

<15:12>

replaced bit

<15:12>

replaced bit

0000

none

1000

7

0001

0

1001

8

0010

1

1010

9

0011

2

1011

10

0100

3

1100

11

0101

4

1101

none

0110

5

1110

none

0111

6

1111

none

micro

controller

AS5130

100n

+5V

CS

CLK

DIO

PROG

AS5130

C1

I/O

Output

Output

V