W5100 WIZnet, W5100 Datasheet - Page 32

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W5100

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

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.
Sn_DIPR (Socket n Destination IP Address Register) [R/W] [0x040C–0x040F, 0x050C–0x050F,
0x060C–0x060F, 0x070C–0x070F] [0x00]
This register sets the Destination IP Address of each Socket to be used in setting the TCP
connection.
command. In passive mode, W5100 sets up the connection and then is internally updated
with peer IP.
In UDP mode, this register value decided to user‟s written value after receiving peer‟s ARP
response. Before receiving peer‟s ARP response, this register has reset value.
Ex) In case of Socket 0 Destination IP address = 192.168.0.11, configure as below.
Sn_DPORT (Socket n Destination Port Register) [R/W] [0x0410–0x0411, 0x0510–0x0511,
0x0610–0x0611, 0x0710–0x0711] [0x00]
This register sets the Destination Port number of each socket to be used in setting the TCP
connection. In active mode, port number needs to be set before executing the Connect
command. In passive mode, W5100 sets up the connection and then is internally updated
with peer port number.
In UDP mode, this register value decided to user‟s written value after receiving peer‟s ARP
response. Before receiving peer‟s ARP response, this register has reset value.
Ex) In case of Socket 0 Destination Port = 5000(0x1388), configure as below,
Sn_MSS (Socket n Maximum Segment Size Register) [R/W] [0x0412-0x0413, 0x0512-
0x0513, 0x0612-0x0613, 0x0712-0x0713] [0x 0000]
This register is used for MSS (Maximum Segment Size) of TCP , and the register displays MSS set
by the other party when TCP is activated in Passive Mode.
Ex) In case of Socket 0 MSS = 1460(0x05B4), configure as below,
192 (0xC0)
0x040C
0x0410
0x0412
0x13
0x05
In active mode, IP address needs to be set before executing the Connect
168 (0xA8)
0x040D
0x0411
0x0413
0xB4
0x88
0 (0x00)
0x040E
11 (0x0B)
0x040F
32

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