www.austriamicrosystems.com/AS5245

Revision 1.5

19 - 31

AS5245

Data Sheet - A p p l i c a t i o n I n f o r m a t i o n

9.1.4 OTP Default Setting

The AS5245 can also be operated without programming. The default, un-programmed setting is:

- Output Md0, Output MD1: 00= Default mode

- Z0 to Z11: 00 = no programmed zero position

- CCW: 0 = clockwise operation

- RA4 to RA0:0 = no OTP bit is selected

- MagCompEN: 1 = The green / yellow mode is enabled.

9.1.5 Redundancy

For a better programming reliability, a redundancy is implemented. This function can be used in cases where the programming of one bit fails.

With an address RA(4:0), one bit can be selected and programmed.

9.1.6 Redundant Programming Option

In addition to the regular programming, a redundant programming option is available. This option allows that one selectable OTP bit can be set

to “1” (programmed state) by writing the location of that bit into a 5-bit address decoder. This address can be stored in bits RA4…RA0 in the OTP

user settings.

Example: setting RA4…0 to “00001” will select bit 51 = PWhalfEN_Indexwidth, “00010” selects bit 50 = MagCompEN, “10010” selects bit 34

=CCW, etc.

Table 13. Redundancy Addressing

Address

Z0

Z1

Z2

Z3

Z4

Z5

Z6

Z7

Z8

Z9

Z10

Z11

CCW

00000

00000

0000

00000

000

0

00001

1

0000

0000

00000

000

0

00010

0

1

000

0000

00000

000

0

00011

0

0

1

00

0000

00000

000

0

00100

0

0

0

1

0

0000

00000

000

0

00101

0000

1

0000

00000

000

0

00110

00000

1

000

00000

000

0

00111

00000

0

1

00

00000

000

0

01000

00000

00

1

0

00000

000

0

01001

00000

000

1

00000

000

0

01010

00000

0000

1

0000

000

0

01011

00000

0000

0

1

000

000

0

01100

00000

0000

00

1

00

000

0

01101

00000

0000

000

1

0

000

0

01110

00000

0000

0000

1

000

0

01111

00000

0000

00000

1

00

0

10000

00000

0000

00000

0

1

00

10001

00000

0000

00000

00

1

0

10010

00000

0000

00000

000

1

10101

11111

1111

11111

111

1