Infineon TLE5014P16 Manuel utilisateur

User’s Manual 1 Rev. 1.0

www.infineon.com/sensors 2019-03-12

TLE5014

GMR-Based Angle Sensor

User’s Manual

About this document

Scope and purpose

This document covers the TLE5014 with the different interfaces SENT, SPC, PWM and SICI. It provides further

information what should be considered using this sensor in an application and how to program it.

Intended audience

This document is aimed at experienced hardware and software engineers using the TLE5014 iGMR angle

sensor.

This documents contains information for the following devices:

Table 1 Derivatives covered by this user manual

Product Type Marking Ordering Code Package Comment

TLE5014P16 014P SP001231814 PG-TDSO-16 PWM Interface, single die

TLE5014S16 014S SP001231818 PG-TDSO-16 SENT Interface, single die

TLE5014C16 014C SP001231806 PG-TDSO-16 SPC Interface, single die

TLE5014S16D 014SD SP001410046 PG-TDSO-16 SENT Interface, dual die

TLE5014C16D 014CD SP001410042 PG-TDSO-16 SPC Interface, dual die

TLE5014P16D 014PD SP001673472 PG-TDSO-16 PWM Interface, dual die

User’s Manual 2 Rev. 1.0

2019-03-12

TLE5014

GMR-Based Angle Sensor

1 Application Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Interfaces overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 PWM Interface Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 SPC Interface Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 SENT Interface Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3 EEPROM Page Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4 EEPROM Register Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1 Page 0x006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2 Page 0x009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.3 Page 0x00A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.4 Page 0x00B - 0x00E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.5 Page 0x00F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5 Working Register Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.1 STAT Register 0x00: Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.2 AVAL Register 0x02: Angle Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.3 ASPD Register 0x03: Angle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.4 RAW_X Register 0x06: X raw value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.5 RAW_Y Register 0x07: Y raw value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.6 TEMP Register 0x0A: Temperature raw value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.7 ANG_BASE register 0x14: Angle base and rotation direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6 SICI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.1 Basic Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.2 SICI Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.2.1 Bit Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.2.2 Communication Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.2.3 CRC generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.2.4 SICI Application Example: Reading working register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.2.5 SICI Application Example: EEPROM read/write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.3 SICI Programming in Bus Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7 EEPROM Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.1 Writing and Reading of EEPROM Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.2 Verification of EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.3 Locking of EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8 Initial Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.1 Zero Angle Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.2 Look-up Table Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.3 Customer ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

9 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9.1 Angle Read Out Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9.2 Angle Base Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

9.3 Look-up Table Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

9.4 Temperature calculation from Short Serial Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

9.5 Reading registers with SICI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Table of Contents

User’s Manual 3 Rev. 1.0

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TLE5014

GMR-Based Angle Sensor

9.6 Reading EEPROM with SICI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

9.7 Writing EEPROM with SICI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

10 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

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TLE5014

GMR-Based Angle Sensor

Application Circuits

1 Application Circuits

The application circuits in this chapter show the various communication possibilities of the TLE5014.

Figure 1 shows a basic application circuit of a TLE5014 with PWM interface. The pull-down resistor is required

to ensure that the sensor starts with a low level after power-on or reset (PWM starts with a rising edge). If the

sensor is configured in such a way, that the PWM starts with a falling edge, the pull-down has to be replaced

by a pull-up.

Figure 1 Application circuit for TLE5014 with PWM, sensor configured to start with a rising edge of

PWM

Figure 2 shows a basic application circuit of the TLE5014 with SPC mode.

Figure 2 Application circuit for TLE5014 with SPC, SPC address is configured to be “0” (IF1 and IF2

connected to GND)

The circuit shows the minimum external circuit which is needed to operate the SPC interface. The generation

of the trigger pulse (switch to pull the line low) is not shown. Depending on EMC requirements, additional

circuitry may be required. The value of Cwand Rpare specified in the datasheet.

The TLE5014 can also be used with a SENT interface (Figure 3). The circuit shown is according to the SAE

J2716-2010 SENT specification.

TLE501 4

GND

µController

Master

10 0nF

VDD

GND

IF1

IF2

IF3

IFA

IFB

IFC

VµC

PWM

TLE501 4

GND

µController

Master

10 0nF

VDD

GND

IF1

IF2

IF3

IFA

IFB

IFC

VµC

SP C

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TLE5014

GMR-Based Angle Sensor

Application Circuits

Figure 3 Application circuit for TLE5014 with SENT

TLE501 4

GND

µController

Master

10 0nF

GND

IF1

IF2

IF3

IFA

IFB

IFC

µC

10 k

56 0 10k

68 p 2.2n 10 0p

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TLE5014

GMR-Based Angle Sensor

Interfaces overview

2 Interfaces overview

Depending on the application, the TLE5014 is available with different interfaces:

• PWM (Pulse Width Modulation)

• SPC (Short PWM Code)

• SENT (Single Edge Nibble Transmission)

• SICI (Single-wire Interface for Calibration and Inspection; for programming purpose only)

PWM

The PWM is an unidirectional interface. Only one line is needed in which the angle value is transmitted. The

angle value corresponds to the duty cycle of the signal data. A reserved duty cycle range is implemented which

is used for indication of internal detected device errors. The data duty cycle range and the error duty cycle

range can be programmed via EEPROM setting.

SPC

The SPC is an interface based on the SENT protocol. The ECU (master µC) sends a trigger pulse which triggers

the TLE5014 to transmit the 12-bit angle value. If desired, the temperature can also be transmitted on a slow

channel (short serial message). The SPC also sends a CRC nibble and an end-pulse to terminate the

communication. One line is needed for the transmission and the pins IF1, IF2 and IFC are used to set the slave

number. Up to four slaves can be connected to one ECU; the ECU trigger pulse length will trigger the respective

sensor.

SENT

SENT is a standardized interface described in SAE J2716-2010.

SICI

A PWM based, bidirectional interface which is used for programming purpose only.

Further details on the SENT, SPC and PWM interface can be found in the data sheet of TLE5014.

2.1 PWM Interface Configuration

The following configuration of the PWM interface is possible. Further details are in the EEPROM register

description in Chapter 4.

Table 2 PWM Interface configuration

Parameter EEPROM

Description

PWM data duty cycle range

minimum value

0x0060 This value determines the low value of the duty cycle for

angle transmission. It corresponds to an angle value of 0°

PWM data duty cycle range

maximum value

0x0062 This value determines the high value of the duty cycle for

angle transmission. It corresponds to an angle value of

359.91°

PWM diagnostic duty cycle low 0x0064 This value determines the duty cycle which indicates a

sensor failure detected by the internal safety mechanism

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TLE5014

GMR-Based Angle Sensor

Interfaces overview

Care has to be taken when programming the low and high diagnostic duty cycle that there is no overlap with

the programmed data duty cycle range. In such a case, diagnostic information (e.g. sensor failure) could not

be distinguished from a valid transmitted angle value. It is recommended to add a safety margin between the

diagnostic and the data duty cycle range.

2.2 SPC Interface Configuration

The following table shows the different options for SPC interface configuration. The details for the EEPROM

setting are shown in Chapter 4.3

PWM diagnostic duty cycle high 0x0066 This value determines the duty cycle which indicates a

sensor reset or a sensor start-up error (BIST error)

PWM predevider for PWM period 0x0068 This value is used for PWM frequency adjustment according

to Equation (4.1)

PWM period 0x006A This value is used for PWM frequency adjustment according

to Equation (4.1)

PWM starting edge 0x00A2 This value determines the starting edge of the PWM protocol.

It can be rising or falling. In case a rising edge is selected, the

PWM protocol will start with a HIGH level. In case a falling

edge is selected, it will start with a LOW

Table 3 SPC Interface configuration

Parameter EEPROM

Description

SPC low time 0x00A2 This value can be 5 UT or 3UT.With5UT,theSPCnibbleis

compliant to the SENT specification

Temperature information in SPC

protocol

0x00A2 The SPC frame can contain two additional nibbles for

transmitting the temperature information

Rolling counter 0x00A2 A 4-bit rolling counter (rolling counter nibble) can be

activated which counts the transmitted frames. This is

necessary for functional safety applications to increase the

diagnostic coverage

Rolling counter in CRC 0x00A2 The rolling counter information can be coded in the CRC of

the SPC frame instead of being transmitted as extra nibble.

In this case the rolling counter information has 2 bit only.

This feature reduces overall frame length of the SPC protocol

SPC trigger 0x00A2 Two options are available for the total trigger length. It can

be constant with a length of 90 UT or variable. The variable

trigger length is tlow +12 UT and depends on the trigger low

time tlow. Both settings can be used in a bus configuration as

the address of the sensor is defined by the low time tlow only.

The advantage of the variable trigger length is that the total

frame length can be reduced

Table 2 PWM Interface configuration (cont’d)

Parameter EEPROM

Description

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TLE5014

GMR-Based Angle Sensor

Interfaces overview

SPC address setting in bus mode

The address of the sensor, so that it responds to a corresponding SPC trigger pulse, has to be set in the

EEPROM. All parts delivered from Infineon have the default address of ID = 0 in the EEPROM. Please refer to

description of EEPROM register 0x00A4 in Description EEPROM Address 0x00A4 CRC_CFG for correct setting.

The address of the sensor written to the EEPROM must be identical to the address of the sensor defined via

hard-wiring of the pins IF1, IF2 and IFC. Table 4 shows how the sensor address has to be set using the pins IF1,

IF2, IFC.

Figure 4 shows a SPC frame with constant trigger length of 90UT, a status nibble, 3 data nibbles, a rolling

counter nibble and a CRC nibble. The low time of the trigger nibble determines the address of the sensor.

Figure 4 SPC frame with constant trigger length and rolling counter enabled as additional nibble

SPC short serial message 0x00A2 A short serial message (slow message) can be activated,

which transmits one bit of a 16 bit information in each SPC

frame and thus needs 16 SPC frames for the whole data

transmission.This transmitted information is the

programmed angle base and rotation direction, the chip

temperature and 32 bit of the customer ID.

SPC unit time (UT) 0x00A2 The SPC unit time (UT) can be selected in the range of 1.0 µs

to 3.0 us.

Table 4 SPC Address Configuration

Address IF1 IF2

0GNDGND

1IFCGND

2GNDIFC

3IFCIFC

Table 3 SPC Interface configuration (cont’d)

Parameter EEPROM

Description

Synchronisation

Frame

Trigger Nibble

µC Activity

Sensor Activity

90 UT 56 UT 12 … 27 UT 12 … 27 UT 12 … 27 UT 12 … 27 UT 12 … 27 UT 12 UT

Status Nibble Data Nibble 1 Data Nibble 3Data Nibble 2 CRC End

pulse

12 … 27 UT

Rolling counter

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Interfaces overview

SPC status nibble

The 4-bit status nibble of the SPC protocol has different content depending on SPC protocol configuration:

• No short serial message:

• Short serial message (SSM) enabled:

In this configuration, the sensor ID is coded in the CRC and not available in the status nibble. There is also the

option, that the rolling counter is not a dedicated nibble but the information is also coded in the CRC.

Therefore, four different versions of the CRC calculation exist:

• No short serial message (SSM) and rolling counter as nibble

Input data for the CRC calculation are:

STATUS & DATA1 & DATA2 & DATA3 & ROLLING_CNT

• Short serial message (SSM) enabled and rolling counter as nibble

the CRC calculation has to include a special 4-bit “ID-nibble” and is performed with the following input

data:

STATUS & DATA1 & DATA2 & DATA3 & ROLLING_CNT & ID_NIBBLE

ID_NIBBLE = (0 0 ID(MSB) ID(LSB))

• Short serial message (SSM) is disabled and rolling counter is included in CRC (no rolling counter as nibble)

The CRC calculation has to include a special 4-bit “RC-nibble” and is performed with the following input

data:

STATUS & DATA1 & DATA2 & DATA3 & RC_NIBBLE

RC_NIBBLE = (RC(MSB) RC(LSB) 0 0)

• Short serial message (SSM) is enabled and rolling counter is included in CRC (no rolling counter as nibble)

The CRC calculation has to include a special 4-bit “RC_ID-nibble” and is performed with the following input

data:

STATUS & DATA1 & DATA2 & DATA3 & RC_ID_NIBBLE

RC_ID_NIBBLE = (RC(MSB) RC(LSB) ID(MSB) ID(LSB))

Table 5 SPC Status Nibble

Bit Description

0 (LSB) Sensor ID (LSB)

1SensorID(MSB)

2 Internal sensor failure

3 (MSB) Sensor reset or start-up (BIST) failure

Table 6 SPC Status Nibble

Bit Description

0 (LSB) Data bit of SSM

1 Start bit of SSM

2 Internal sensor failure

3 (MSB) Sensor reset or start-up (BIST) failure

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TLE5014

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Interfaces overview

Synchronization of the Rolling Counter

The first transmitted SPC frame has a rolling counter value of 0. The next frame transmits a rolling counter

value which is incremented by 1. In case the rolling counter is coded in the CRC, it is a 2-bit value. In this

configuration, a synchronization of the counter value (sensor value and counter value in the micro controller)

is required. The following two options are possible:

• Calculate the CRC with the received sensor data and a RC_NIBBLE of RC_NIBBLE = 0000B. Repeat this until

the calculated CRC matches with the transmitted CRC. This frame has the rolling counter value of 0. The

next transmitted frame has the incremented counter value of 1 and so on. As the rolling counter has 2 bit

in case it is coded in the CRC, latest the fourth transmitted frame needs to have a matched CRC. If this is

not the case an error occurred.

• For the first transmitted frame, calculate the four possible CRCs with the RC_NIBBLE values 0000Bto 0011B.

The CRC which is matching the transmitted CRC has the correct rolling counter value. Use this value as

starting value which is incremented with the next received frame.

CRC calculation for SPC protocol

The checksum nibble is a 4-bit CRC of the data nibbles including the status nibble. The CRC is calculated using

a polynomial x4+x3+x2+1 with a seed value of 0101B. The remainder after the last data nibble is transmitted as

CRC. The CRC calculation method is based on “recommended” implementation in the SENT standard 2010.

For this “recommended” implementation, the CRC is calculated based on the input data which is then

augmented with four extra zero bits and an additional CRC calculation step.

Code example:

//Table CRC, Poly=0xD

uint8_t cr4Table[16] = {0, 13, 7, 10, 14, 3, 9, 4, 1, 12, 6, 11, 15, 2, 8, 5};

//Example:

//Status Nibble = 0x6

//Data Nibble = 0x7, 0x4, 0x8, 0x7, 0x4, 0x8

uint8_t nibble[7] = {6, 7, 4, 8, 7, 4, 8};

uint8_t nb_nibble = 0x7;

Table 7 Examples for ID Nibble, RC_Nibble and ID_RC_Nibble calculation

ID RC ID_Nibble RC_Nibble RC_ID_Nibble

00B–0000B––

01B– 0001B––

10B– 0010B––

11B– 0011B––

–00

B–0000

B–

–01

B–0100

B–

–10

B–1000–

–11

B–1100

B–

00B00B– – 0000B

01B01B– – 0101B

10B10B– – 1010B

11B11B– – 1111B

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