W5100 WIZnet, W5100 Datasheet - Page 28

• 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_IR (Socket n Interrupt Register) [R] [0x0402, 0x0502, 0x0602, 0x0702] [0x00]
This register is used for notifying connection establishment and termination, receiving data
and Timeout. The Socket n Interrupt Register must be cleared by writing „1‟.
Reserved
0x20
0x21
0x22
0x40
Bit
7
6
5
4
3
2
7
Reserved
Reserved
Reserved
SEND_OK
TIMEOUT
RECV
SEND_KEEP
SEND_MAC
Symbol
SEND
RECV
Reserved
6
It transmits the data as much as the increased size of Socket n TX Write
Pointer. For more detail, refer to Socket n TX Free Size Register
(Sn_TX_FSR), Socket n TX Write Pointer Register(Sn_TX_WR), and Socket
n TX Read Pointer Register(Sn_TX_RR) or 5.2.1.1. SERVER mode.
It is used in UDP mode.
The basic operation is same as SEND. Normally SEND operation needs
Destination Hardware Address that is received in ARP(Address Resolution
Protocol) process. SEND_MAC uses Socket n Destination Hardware
Address(Sn_DHAR) that is written by users without ARP process.
It is only used in TCP mode.
It checks the connection status by sending 1byte data. If the connection
is already terminated or peer has no response, Timeout interrupt will
occur.
Receiving is processed with the value of Socket n RX Read Pointer
Register(Sn_RX_RD).
For more detail, refer to 5.2.1.1 SERVER mode Receiving Process with
Socket n RX Received Size Register (Sn_RX_RSR), Socket n RX Write
Pointer
Register(Sn_RX_RD)
Reserved
Reserved
Reserved
It is set as „1‟ if send operation is completed.
It is set as „1‟ if Timeout occurs during connection establishment or
termination and data transmission.
It is set as „1‟ whenever W5100 receives data. And it is also set as „1‟
Reserved
5
Register(Sn_RX_WR),
SEND_OK
4
TIMEOUT
3
Description
and
RECV
Socket
2
n
DISCON
1
RX
Read
CON
0
Pointer
28