W6100 datasheet(106/149 Pages) WIZNET

106 / 149 page

W6100 – Hardwired Dual TCP/IP Stack Controller

106/149

goto 6.3.1 UDP Unicast : OPEN(UDP6 Mode)

}

 Received DATA?

Refer to 6.2.1 TCP SERVER: Received DATA?

 Receiving Process

Refer to 6.3.1 UDP Unicast: Receiving Process

 Send DATA? / Sending Process

Refer to 6.3.1 UDP Unicast: Sending Process

 Complete sending? / Timeout?

Refer to 6.3.1 UDP Unicast: Complete Sending? / Timeout?

 Finished? / CLOSE

Refer to 6.3.1 UDP Unicast: Finished? / CLOSE

6.3.4 UDP DUAL

SOCKET provides UDP dual (UDPD) mode based on W6100 Dual Stack (IPv4 / IPv6). SOCKET

opened in UDPD mode can transmit/receive all UDP4/UDP6 packets.

UDP4 data and UDP6 data can be transmitted by Sn_CR[SEND] and Sn_CR[SEND6] respectively,

and received UDP4 data and UDP6 data can be distinguished by ‘PACKET INFO’ of the received

packet.

The UDPD operation flow is same as Figure 23.

 OPEN

Open the SOCKET n to UDP Dual mode.

UDP6 Mode

{

START :

Sn_MR[3:0] = ‘1110’; /* set UDPD Mode */

/* set Source PORT Number, 5000(0x1388) */

Sn_PORTR[0:1] = {0x13, 0x88};

Sn_CR[OPEN] = ‘1’; /* set OPEN Command */

while(Sn_CR != 0x00); /* wait until OPEN Command is cleared */

W6100 Datasheet(PDF) 106 Page - WIZnet Co., Ltd