W5500 Datasheet, PDF (6/65 Pages) List of Unclassifed Manufacturers – Supports 8 independent sockets simultaneously

Table of Figures
Figure 1. W5500 Pin Layout .......................................................................7
Figure 2. External reference resistor ......................................................... 11
Figure 3. Crystal reference schematic ........................................................ 11
Figure 4. Variable Length Data Mode (SCSn controlled by the host) .................... 12
Figure 5. Fixed Length Data Mode (SCSn is always connected by Ground) ............. 12
Figure 6. SPI Mode 0 & 3 ........................................................................ 13
Figure 7. SPI Frame Format ..................................................................... 14
Figure 8. Write SPI Frame in VDM mode ...................................................... 18
Figure 9. SIMR Register Write in VDM Mode .................................................. 19
Figure 10. 5 Byte Data Write at 1th Socket‟s TX Buffer Block 0x0040 in VDM mode.. 20
Figure 11. Read SPI Frame in VDM mode ..................................................... 21
Figure 12. S7_SR Read in VDM Mode ........................................................... 22
Figure 13. 5 Byte Data Read at 3rd Socket‟s RX Buffer Block 0x0100 in VDM mode .. 23
Figure 14. 1 Byte Data Write SPI Frame in FDM mode...................................... 25
Figure 15. 2 Bytes Data Write SPI Frame in FDM mode .................................... 25
Figure 16. 4 Bytes Data Write SPI Frame in FDM mode .................................... 25
Figure 17. 1 Byte Data Read SPI Frame in FDM mode ...................................... 26
Figure 18. 2 Bytes Data Read SPI Frame in FDM mode ..................................... 26
Figure 19. 4 Bytes Data Read SPI Frame in FDM mode ..................................... 26
Figure 20. Register & Memory Organization ................................................. 28
Figure 21. INTLEVEL Timing ..................................................................... 34
Figure 22. Reset Timing.......................................................................... 61
Figure 23. SPI Timing ............................................................................. 62
Figure 24. Transformer Type .................................................................... 63
Figure 25. Package Dimensions ................................................................. 64
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W5500 Datasheet Version1.0 (August 2013)