WRITE OTP: Writing of the OTP register. The written data is volatile. “Zero Angle” is the angle, which is set for zero position. “Sensitivity” is the gain setting in the signal path. “Redundancy” is the

number of bits, which allows the customer to overwrite one of the customer OTP bits <0:15>.

PROG_OTP: Programming of the OTP register. Only Bits <0:20> can be programmed by the customer. The internal factory settings are locked by an “internal lock bit” and cannot be programmed.

READ_OTP: Read out the content of the OTP register. Data written by WRITE_OTP and PROG_OTP is read out.

READ ANA: Analog read out mode. The analog value of every OTP bit is available at pin 1 (PROG), which allows for a verification of the fuse process. No data is available at the SSI.

tst: Test bits for internal testing (must be left unchanged).

ID (59:42): Chip identifier to track the device in the field

lock_otp (21): To disable the programming of the factory bits – write access is still possible

r_add (20:17): The following OTP bits can be modified according to the requirements of the application.

r_bit (16): Redundancy bit (functionality is only implemented in the user region)

Sensitivity (15:14): Trim bit for the gain of the amplifier after the demodulator

abi (13:12): Mode selection for the incremental signals

uvw (11:9): Number of poles of the brush less dc motor - impact to the uvw signals

zero angle (8:0): Trim bit for the zero angle information

LP: Enables the low power mode to reduce the current consumption - digital registers are not reset.

Notes:

1. The Extended Mode can be enabled by sending command 16 (EN PROG).

2. The lock bit will be deleted during power down or sleep mode to ensure that the user is able to detect that the read out angle value is computed after the wake up sequence.

3. In extended mode 1 data bit (wirte/read) requires 4 clock cycles (see Figure 19).

Table 10. Commands of the SSI in Extended Mode

Digital interface at extended mode

Number of bits

Factory Settings

Customer Settings

2

18

1

1

4

4

1

4

2

3

1

4

1

2

2

3

9

#

cmd

bin

mode

61 ..60 59 ..42 41

40 39 ..36 35 ..32 31 30 ..27 26 ..25 24 ..22

21

20 ..17 16

15 ..14

13 ..12 11 ..9

8..0

31

WRITE OTP

11111

xt write

tst

ID

tst

tst

tst

tst

tst

tst

tst

tst

lock_otp (*) r_ add r_bit sensitivity

abi

uvw

zero

angle

25

PROG_OTP

11001

xt write

tst

ID

tst

tst

tst

tst

tst

tst

tst

tst

lock_otp (*) r_ add r_bit sensitivity

abi

uvw

zero

angle

15

READ_OTP

01111

xt read

tst

ID

tst

tst

tst

tst

tst

tst

tst

tst

lock_otp (*) r_ add r_bit sensitivity

abi

uvw

zero

angle

9

READ ANA

01001

xt read

tst

ID

tst

tst

tst

tst

tst

tst

tst

tst

lock_otp (*) r_ add r_bit sensitivity

abi

uvw

zero

angle