| 전자부품 데이터시트 검색엔진 |
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W5100 데이터시트(PDF) 28 Page - WIZnet Co., Ltd |
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W5100 데이터시트(HTML) 28 Page - WIZnet Co., Ltd |
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28 / 72 page ![]() © Copyright 2009-2011 WIZnet Co., Inc. All rights reserved. 27 It is applied only in case of MULTI bit is ‘1’ 4 Reserved Reserved 3 P3 Protocol Sets up corresponding socket as TCP, UDP, or IP RAW mode P3 P2 P1 P0 Meaning 0 0 0 0 Closed 0 0 0 1 TCP 0 0 1 0 UDP 0 0 1 1 IPRAW * In case of socket 0, MACRAW and PPPoE mode exist. P3 P2 P1 P0 Meaning 0 1 0 0 MACRAW 0 1 0 1 PPPoE 2 P2 1 P1 0 P0 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 Symbol Description 0x01 OPEN 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. 0x02 LISTEN 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. 0x04 CONNECT 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. 0x08 DISCON 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 |
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