TLE4998C
Infineon
The information about the SPC enhancement has been derived from the TLE4998C Data Sheet, Rev 1.0, December 2008.
Application NoteNxp
MPC574xP SENT/SPC Driver
Application note for the SENT/SPC driver for MPC574xP MCUs, detailing SAE J2716 protocol, SPC enhancements, and API implementation for automotive sensor communication.
Overview
This application note describes the implementation of a SENT/SPC driver for the NXP MPC574xP 32-bit microcontroller family. It provides a technical overview of the Single Edge Nibble Transmission (SENT) protocol based on SAE J2716, including the encoding scheme for synchronization, status, data, and CRC nibbles. The document further details the Short PWM Code (SPC) enhancement, which enables half-duplex synchronous communication between the MCU (receiver) and sensors (transmitters). It includes information on the driver's functional description, API, memory allocation, and hardware physical layer requirements using components like the BSS138 for level shifting. The driver is designed to interface with automotive sensors such as the Infineon TLE4998C and TLE4998S.
Use Cases
- Electric power steering (EPS)
- Throttle position sensing
- Pedal position sensing
- Airflow mass sensing
- Liquid level sensing
- High-resolution sensor data transmission to automotive ECUs
Topics
SENT
SPC
SAE J2716
MPC574xP
MPC5744P
TLE4998C
Automotive Sensors
Microcontroller Driver
ECU
Single Edge Nibble Transmission
Referenced Parts
MPC574xP
NXP
This application note describes the SENT/SPC driver for the MPC574xP 32-bit microcontrollers.
TLE4998S
Infineon
An example of a TLE4998S SENT waveform and one of a TLE4998C SENT/SPC compatible Hall sensor waveform are shown in Figure 6 and Figure 7.
MPC5744P
NXP
Figure 10. MPC5744P SENT/SPC driver configurator application window
BSS138
Nexperia
Equivalent gate pulse widths were obtained by measurement at 23°C ambient temperature using a typical application circuit with a BSS138 N-channel MOSFET transistor.
TLE4998C
Infineon
SENT/SPC compatible Infineon TLE4998C programmable linear Hall sensor, including all its supported
| TLE4998C | Infineon | The information about the SPC enhancement has been derived from the TLE4998C Data Sheet, Rev 1.0, December 2008. |
| MPC574xP | NXP | This application note describes the SENT/SPC driver for the MPC574xP 32-bit microcontrollers. |
| TLE4998S | Infineon | An example of a TLE4998S SENT waveform and one of a TLE4998C SENT/SPC compatible Hall sensor waveform are shown in Figure 6 and Figure 7. |
| MPC5744P | NXP | Figure 10. MPC5744P SENT/SPC driver configurator application window |
| BSS138 | Nexperia | Equivalent gate pulse widths were obtained by measurement at 23°C ambient temperature using a typical application circuit with a BSS138 N-channel MOSFET transistor. |
| TLE4998C | Infineon | SENT/SPC compatible Infineon TLE4998C programmable linear Hall sensor, including all its supported |