W5100 WIZnet, W5100 Datasheet - Page 27

• 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_CR (Socket n Command Register) [R/W] [0x0401, 0x0501, 0x0601, 0x0701] [0x00]
This register is utilized for socket n initialization, close, connection establishment,
termination, data transmission and command receipt. After performing the commands, the
register value will be automatically cleared to 0x00.
Value
0x01
0x02
0x04
0x08
0x10
1
0
CONNECT
P1
P0
Symbol
DISCON
LISTEN
CLOSE
OPEN
* In case of socket 0, MACRAW and PPPoE mode exist.
P3
0
0
0
0
It is used to initialize the socket. According to the value of Socket n
Mode Register (Sn_MR), Socket n Status Register(Sn_SR) value is
changed to SOCK_INIT, SOCK_UDP , SOCK_IPRAW, or SOCK_MACRAW.
For more detail, refer to 5. Functional Description.
It is only used in TCP mode.
It changes the value of Socket n Status Register (Sn_SR) to SOCK_LISTEN
in order to wait for a connection request from any remote peer (TCP
Client).
For more detail, refer to 5.2.1.1 SERVER mode.
It is only used in TCP mode.
It sends a connection request to remote peer(TCP SERVER). If the
connection is failed, Timeout interrupt will occur.
For more detail, refer to 5.2.1.2 CLIENT mode.
It is only used in TCP mode.
It sends a connection termination request. If connection termination is
failed, Timeout interrupt will occur. For more detail, refer to 5.2.1.1
SERVER mode.
* In case of using CLOSE command instead of DISCON, only the value of
Socket n Status Register(Sn_SR) is changed to SOCK_CLOSED without
the connection termination process.
It is used to close the socket. It changes the value of Socket n Status
Register(Sn_SR) to SOCK_CLOSED.
P2
0
0
1
1
P1
1
1
0
0
P0
0
1
0
1
UDP
IPRAW
MACRAW
PPPoE
Description
Meaning
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