W6100 datasheet(103/149 Pages) WIZNET

103 / 149 page

W6100 – Hardwired Dual TCP/IP Stack Controller

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 Send DATA? / Sending Process

Set destination address for UDP4 broadcasting and UDP6 all-node multicasting

UDP4 All Node Broadcasting :

{

/* set broadcast address, 255.255.255.255 */

Sn_DIPR[0:3] = {0xFF, 0xFF, 0xFF, 0xFF};

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

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

goto 6.2.1 TCP SERVER: Sending Process with Sn_CR[SEND];

}

UDP4 Subnet Broadcasting : Assume SIPR = “192.168.0.10” & SUBR = “255.255.255.0”

{

/* set Broadcast Address, 192.168.0.255 */

Sn_DIPR[0:3] = {0xC0, 0xA8, 0x00, 0xFF};

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

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

goto 6.2.1 TCP SERVER: Sending Process with Sn_CR[SEND];

}

UDP6 All-Node Multicasting :

{

/* set destination IP address, FF02::01 */

Sn_DIP6R[0:15] = {0xFF, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};

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

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

goto 6.2.1 TCP SERVER: Sending Process with Sn_CR[SEND];

}

 Complete sending? / Timeout?

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

 Finished? / CLOSE

Refer to 6.3.1 UDP Unicast: Finished? / CLOSE

W6100 Datasheet(PDF) 103 Page - WIZnet Co., Ltd