W5100 WIZnet, W5100 Datasheet - Page 41

• Manufacturer Part Number: W5100
• Description: Ethernet ICs 3-IN-1 ENET CONTR TCP/IP+MAC+PHY
• Manufacturer: WIZnet

Specifications of W5100

• Rohs: yes
• Product: Ethernet Controllers
• Data Rate: 10 Mb/s, 100 Mb/s
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V
• Maximum Operating Temperature: + 80 C
• Package / Case: LQFP-80
• Ethernet Connection Type: 10Base-T, 100Base-TX
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Standard Supported: 802.3, 802.3u

5.2 Data Communications
Data communication is available through TCP , UDP , IP-Raw and MAC-Raw . In order to select it,
configure protocol field of Socket n Mode Register(Sn_MR) of the communication sockets
(W5100 supports total 4 sockets).
5.2.1 TCP
TCP is the connection based communication method that will establish connection in advance
and deliver the data through the connection by using IP Address and Port number of the
systems. There are two methods to establish the connection. One is SERVER mode(passive
open) that is waiting for connection request. The other is CLIENT mode (active open) that
sends connection request to a server.
41
© Copyright 2009-2010 WIZnet Co., Inc. All rights reserved.