A Leading Provider of Smart, Connected and Secure Embedded Control Solutions

Presented by Martin Miller – June 2021

Vector Automotive Ethernet Symposium 2021

Agenda

• Microchip Introduction

• 10BASE-T1S Technology

• Microchip 10BASE-T1S Products

Microchip Delivers

• Expertise in Networking• Proven Track Record

• Leverage Multi-faceted Technologies• Total System Solutions

Microchip Market Expertise and Commitment

• Comprehensive Ethernet portfolioPHYs, Switches, Bridges, Controllers, SoC

• ‘No end-of-life’ approach

Industrial Automotive

Ethernet Scales from Low to High Bandwidth

• Common network software stacks

• Physical layer independent

10BASE-T1S TechnologySpecified in IEEE Std 802.3cg-2019™

• 10 Mbit/s

• Half-duplex

• Flexible topology• Multidrop bus line

• Point-to-point

• Single balanced pair of conductors• Unshielded twisted pair cables

• PCB lanes/backplane

PLCAOptimized Data Throughput on a Bus Line• Goals

• Full bandwidth utilization• Reduce latency

• Principle• Avoid physical collisions on the medium by organizing the media access • Called Physical Layer Collision Avoidance (PLCA)

• How it is done• Only the PHY that owns a transmit opportunity is allowed to send data• Transmit opportunities are given in a round robin manner• A new cycle of transmit opportunities is started when the PLCA coordinator node sends a BEACON• Works on top of Carrier Sense Multiple Access/Collision Detection (CSMA/CD)

0…0 0 1 N 0

PLCA Bus Cycle

t

0 1 2 3 …

10 Mbps shared

SPE is Not Just for Automotive Networking

10BASE-T1S Application Examples• Sensor• Ultrasonic

• Radar

• Microphones

• Powertrain

• Actuator• Light

• Speaker

• Electric Motor

10

• Ultrasonic sensor units• Radar sensor units• Front radar

10BASE-T1S Applications• Sensor• Ultrasonic

• Radar

• Microphones

• Powertrain

• Actuator• Light

• Speaker

• Electric Motor

11

• Handsfree• Emergency Call• 360o environment sensing

10BASE-T1S Applications• Sensor• Ultrasonic

• Radar

• Microphones

• Powertrain

• Actuator• Light

• Speaker

• Electric Motor

12

• Position• Speed• Pressure• Temperature• Etc.

10BASE-T1S Applications• Sensor• Ultrasonic

• Radar

• Microphones

• Powertrain

• Actuator• Light

• Speaker

• Electric Motor

13

• Front-/Backlight• Indicator• Ambient Lighting

10BASE-T1S Applications• Sensor• Ultrasonic

• Radar

• Microphones

• Powertrain

• Actuator• Light

• Speaker

• Electric Motor

14

• Door Speaker• Subwoofer• eSound• Emergency Call Unit• Etc.

10BASE-T1S Applications• Sensor• Ultrasonic

• Radar

• Microphones

• Powertrain

• Actuator• Light

• Speaker

• Electric Motor

15

• Windows• Mirrors• Door-opener• Pumps• Windshield wiper

10BASE-T1S in Zone Architecture• Example Door Zone• Window Lifter

• Mirror Control

• Speakers

• Lock

• Ultrasonic

• Ambient Light

• Indicator Light

➢Multiple applications on a single cable!

16

10BASE-T1S Enabling Zone Architecture

• Door

• Bumper

• Seat

• Roof

• Engine Compartment

• Battery

• Etc.

17

10BASE-T1S Product Details

10BASE-T1S PHYEvaluation Boards and MPLAB Harmony

• 10BASE-T1S PHY RMII and MII Evaluation Boards• Fits to many Microchip MCU boards• Small form factor• Includes the Bus Interface Network (analog front-end)

• 10BASE-T1S PHY USB Evaluation Board• Makes every USB host a potential 10BASE-T1S node• Drivers for Linux & Windows

• MPLAB Harmony v3 Development Framework• Integration into development framework for Microchip

microcontrollers and microprocessors

Implementation Example10BASE-T1S Weather Station

• SAM E54 • Temperature, Pressure,

Humidity Sensor

• 10BASE-T1S PHY RMII

• Raspberry PI• Display

• 10BASE-T1S PHY USB

Q&A