AS5147P datasheet(18/40 Pages) AMSCO

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[v1-01] 2015-May-12

AS5147P − Detailed Description

Figure 25:

ANGLECOM (0x3FFF)

Non-Volatile Registers (OTP)

The OTP (One-Time Programmable) memory is used to store the

absolute zero position of the sensor and the customer settings

permanently in the sensor IC.

SPI write/read access is possible several times for all

Non-Volatile Registers (soft write). Soft written register content

will be lost after a hardware reset. The programming itself can

be done just once. Therefore the content of the Non-Volatile

Registers is stored permanently in the sensor. The register

content is still present after a hardware reset and cannot be

overwritten. For a correct function of the sensor the OTP

programming is not required. If no configuration or

programming is done, the Non-Volatile Registers are in the

default state 0x0000.

Figure 26:

Non-Volatile Register Table

Figure 27:

ZPOSM (0x0016)

Name

Read/Write

Bit Position

Description

DAECANG

13:0

Angle information with dynamic angle error

compensation

Address

Name

Default

Description

0x0016

ZPOSM

0x0000

Zero position MSB

0x0017

ZPOSL

0x0000

Zero position LSB/ MAG diagnostic

0x0018

SETTINGS1

0x0000

Custom setting register 1

0x0019

SETTINGS2

0x0000

Custom setting register 2

0x001A

RED

0x0000

Redundancy register

Name

Read/Write/Program

Bit Position

Description

ZPOSM

R/W/P

7:0

8 most significant bits of the zero position

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