WIZnet W5500 Ethernet Shield (3)

SPI Operation & Timing Diagram

SPI Operation

There is a W5500 inside W5500 Ethernet shield. Therefore SPI operation & Timing Diagram of Ethernet shield follows one of W5500. For more information about W5500 chip please also refer to the chip’s datasheet:

Technical Reference

Block Diagram

  • Not buffer


  • Using buffer

using buffer


Part list


  • W5500 Ethernet shield Rev1.0 Dimension



Using WIZnet Ethernet Library for ioshield-A


Ethernet Library

See Also

Where to Buy

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