Datasheet

W5500 Datasheet Version1.0.9 5 / 66
Table of Contents
Pin Assignment .......................................................................................... 7
1.1 Pin Descriptions .............................................................................. 7
HOST Interface ......................................................................................... 12
2.1 SPI Operation Mode ........................................................................ 13
2.2 SPI Frame .................................................................................... 14
2.2.1 Address Phase......................................................................... 14
2.2.2 Control Phase ......................................................................... 15
2.2.3 Data Phase ............................................................................ 17
2.3 Variable Length Data Mode (VDM) ....................................................... 17
2.3.1 Write Access in VDM ................................................................. 18
2.3.2 Read Access in VDM .................................................................. 21
2.4 Fixed Length Data Mode (FDM) .......................................................... 24
2.4.1 Write Access in FDM ................................................................. 25
2.4.2 Read Access in FDM .................................................................. 26
Register and Memory Organization ................................................................ 27
3.1 Common Register Block ................................................................... 29
3.2 Socket Register Block ...................................................................... 30
3.3 Memory ...................................................................................... 31
Register Descriptions ................................................................................. 32
4.1 Common Registers ......................................................................... 32
4.2 Socket Registers ............................................................................ 44
Electrical Specifications ............................................................................. 58
5.1 Absolute Maximum Ratings ............................................................... 58
5.2 Absolute Maximum Ratings (Electrical Sensitivity) ................................... 58
5.3 DC Characteristics ......................................................................... 59
5.4 Power Dissipation .......................................................................... 60
5.5 AC Characteristics ......................................................................... 60
5.5.1 Reset Timing .......................................................................... 60
5.5.2 Wake up Time ......................................................................... 60
5.5.3 Crystal Characteristics .............................................................. 60
5.5.4 SPI Timing ............................................................................. 61
5.5.5 Transformer Characteristics ........................................................ 62
5.5.6 MDIX .................................................................................... 62
IR Reflow Temperature Profile (Lead-Free) ..................................................... 63
Package Descriptions ................................................................................. 64
Document History Information ....................................................................... 65