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How to Achieve High-Speed Ethernet with W6300 on Raspberry Pi RP2350

Achieve 80+ Mbps Ethernet on RP2350 using WIZnet W6300 via QSPI with hardware TCP/IP offload for low MCU overhead.

jakelee

Published January 15, 2026

Original author: Debashis DasOriginal source (new tab)

How to Achieve High-Speed Ethernet with W6300 on Raspberry Pi RP2350

Components

Hardware components

Project description

Step 1: Understanding the Hardware The W6300-EVB-Pico2 is a Pico 2–style evaluation board built around the Raspberry Pi RP2350 and WIZnet’s W6300 hardwired TCP/IP Ethernet controller. The key design choice is the high-speed QSPI host interface, enabling 10/100 Mbps Ethernet with reported 80+ Mbps data rates while keeping MCU overhead low through a hardware TCP/IP Offload Engine (TOE). Core W6300 networking hooks called out in the source: Integrated 10/100 Ethernet PHY 8 independent hardware sockets 64KB total SRAM for socket buffering Dual-stack IPv4/IPv6 Wake-on-LAN and low-power modes…

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