W5100 WIZnet, W5100 Datasheet - Page 57
W5100
Manufacturer Part Number
W5100
Description
Ethernet ICs 3-IN-1 ENET CONTR TCP/IP+MAC+PHY
Manufacturer
WIZnet
Datasheet
1.W5100.pdf
(71 pages)
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
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© Copyright 2009-2010 WIZnet Co., Inc. All rights reserved.
5.2.3 IP raw
IP Raw mode can be utilized if transport layer protocol of some ICMP or IGMP that W5100 does
not support, needs to be processed.
{
START:
}
/* sets IP raw mode */
Sn_MR = 0x03;
/* sets Protocol value */
/* The value of Protocol is used in Protocol Field of IP Header.
Sn_PROTO = protocol_value;
/* sets OPEN command */
Sn_CR = OPEN;
/* Check if the value of Socket n Status Register(Sn_SR) is SOCK_IPRAW. */
if (Sn_SR != SOCK_IPRAW) Sn_CR = CLOSE; goto START;
For the list of protocol identification number of upper classification, refer to on line
documents of IANA (http://www.iana.org/assignments/protocol-numbers). */
It initializes the socket as IP raw.
Socket Initialization
57