W5100 WIZnet, W5100 Datasheet - Page 59

• 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

© Copyright 2009-2010 WIZnet Co., Inc. All rights reserved.
}
Sn_MR = 0x04;
/* sets OPEN command */
Sn_CR = OPEN;
/* Check if the value of Socket n Status Register(Sn_SR) is SOCK_MACRAW. */
if (Sn_SR != SOCK_MACRAW) Sn_CR = CLOSE; goto START;

This is same as UDP . Refer to “5.2.2 UDP”.

MAC raw received Ethernet packet having packet size information.
In case of MAC raw, 2byte header is attached to the data received. The header structure
is as below.

This is same as UDP . Refer to “5.2.2 UDP” except that remote_port information is not
needed.
Received DATA?
Receiving Process
Send DATA? / Sending Process
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