A Beginner’s Guide to Ethernet 802.3 (EE-269)
Technical guide to Ethernet 802.3 fundamentals, OSI/TCP models, and hardware interfaces for Analog Devices ADSP-BF537 and ADSP-BF535 Blackfin processors.
Overview
This technical document provides an overview of Ethernet 802.3 specifications and the protocols used in Ethernet driver development. It details the Open Systems Interconnection (OSI) and TCP/IP models, focusing on the Physical Layer (Layer 1) and Data Link Layer (Layer 2). The guide covers critical hardware components including the Media Access Controller (MAC), the Physical Layer device (PHY), and the Media Independent Interface (MII). It explains various coding methods such as Manchester encoding for 10Mbit/s systems and NRZI and 4B/5B coding for 100Mbit/s systems. The document serves as a theoretical complement to hardware references for the ADSP-BF537 and ADSP-BF535 Blackfin processors.
Use Cases
- Implementing Ethernet connectivity on Blackfin processors
- Understanding PHY and MAC layer interactions in embedded systems
- Configuring MII interfaces for 10/100 Mbps networking
- Designing hardware for Ethernet physical layer signal chains
- Developing software stacks for TCP/UDP communication
Topics
Referenced Parts
| ADSP-BF535 | Analog Devices | Ethernet Network Interface for ADSP-BF535 Blackfin Processors |
| ADSP-BF537 | Analog Devices | ADSP-BF537 Blackfin® Processor Hardware Reference |