W5100 datasheet(32/72 Pages) WIZNET

32 / 72 page

Below is shown during changing the status.

Value

Symbol

Description

0x15

SOCK_SYNSENT

It is shown in case that CONNECT commands are given to

Socket n Command Register(Sn_CR) at the SOCK_INIT status.

It is automatically changed to SOCK_ESTABLISH when the

connection is established.

0x16

SOCK_SYNRECV

It is shown in case that connection request is received from

remote peer(CLIENT). It normally responds to the requests

and changes to SOCK_ESTABLISH.

0x18

SOCK_FIN_WAIT

It is shown in the process of connection termination. If the

termination is normally processed or Timeout interrupt is

asserted, it will be automatically changed to SOCK_CLOSED.

0x1A

SOCK_CLOSING

0X1B

SOCK_TIME_WAIT

0X1D

SOCK_LAST_ACK

0x01

SOCK_ARP

It is shown when ARP Request is sent in order to acquire

hardware address of remote peer when it sends connection

request in TCP mode or sends data in UDP mode. If ARP

Reply is received, it changes to the status, SOCK_SYNSENT,

SOCK_UDP or SOCK_ICMP, for the next operation.

Sn_PORT (Socket n Source Port Register) [R/W] [0x0404–0x0405, 0x0504–0x0505, 0x0604–

0x0605, 0x0704–0x0705] [0x00]

This register sets the Source Port number for each Socket when using TCP or UDP mode, and

the set-up needs to be made before executing the OPEN Command.

Ex) In case of Socket 0 Port = 5000(0x1388), configure as below,

0x0404

0x0405

0x13

0x88

Sn_DHAR (Socket n Destination Hardware Address Register) [R/W] [0x0406–0x040B,

0x0506–0x050B, 0x0606–0x060B, 0x0706–0x070B] [0xFF]

This register sets the Destination Hardware address of each Socket.

Ex) In case of Socket 0 Destination Hardware address = 08.DC.00.01.02.10, configuration is as

below,

0x0406

0x0407

0x0408

0x0409

0x040A

0x040B

0x08

0xDC

0x00

0x01

0x02

0x0A

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