W5100 Datasheet Version 1.2.5 2011 WIZnet Co., Inc. All Rights Reserved. For more information, visit our website at W5100 Datasheet Document History Information Version Date Descriptions Ver. 1.0.0 Dec. 21, 2006 Released with W5100 Launching LB bit in Mode register is not used . Ver. 1.0.1 Jan. 10, 2006 W5100 is used only in Big-endian ordering. Modified the OPMODE2-0 signals descriptions (P. 9) Ver. 1.1.1 Jun. 19, 2007 Modified the TEST MODE3-0 signals description (P.10) Modified the Clock signals description (P.11) Modified the LINKLED signal description (P.11) Modified the explanation of RECV INT in Sn IR register (P. 26) Replaced the reset value of Sn DHAR register (0x00 to 0xFF, P. 29) Modifted the explanation of Sn DIPR, Sn DPORT register(P. 30) Replaced the reset value of Sn MSS register (0xFFFF to 0x0000, P. 30) Ver. 1.1.2 Sep. 28, 2007 Modified the Operating temperature (P. 62) Changed the typing error MISO signal (P. 9) Ver. 1.1.3 Oct. 18, 2007 Modified the SPI Timing diagram and description (P. 65) Ver. 1.1.4 Oct. 18, 2007 Modified the diagram (P. 39) Modified the Crystal Characteristics value (P. 66) Ver. 1.1.5 Nov. 11, 2007 Modified the SEN signals description (P. 9) Ver. 1.1.6 Jan. 30, 2008 Changed the typing error SCLK (P. 65) Changed the typing error memory test mode (P. 18) Ver. 1.1.7 Feb. 12, 2009 Changed the description & type of clock signals (P. 11) Modified DC characteristic value(p. 62) Ver. 1.2 Feb. 11, 2010 Add the power supply signal schematic (P. 11) Ver. 1.2.1 Jun. 10, 2010 Add Sn TX WR value changing condition Modify RD/WR timing diagram (P. 64, 65) Ver. 1.2.2 Jun. 28, 2010 Change the value of SOCK ARP(0x01) state (P.30) Ver. 1.2.3 Feb. 16, 2011 Added the explanation of MF(MAC Filter) in Sn MR (P. 25) Ver. 1.2.4 Sep. 20, 2011 Modify the min/max value of Output Setup Time (P.66) Ver. 1.2.5 Sep. 22, 2014 Copyright 2009-2011 WIZnet Co., Inc. All rights reserved. 1