W6100 datasheet(127/149 Pages) WIZNET

127 / 149 page

W6100 – Hardwired Dual TCP/IP Stack Controller

127/149

*CAUTION : PLR, PFR, VLTR, PLTR, and PAR values are not processed properly when RA is

received but the first type of RA Option Field is not source link-layer address (0x01) and the

second type is not Prefix Information (0x03).

In this case, use IPRAW6 SOCKET to receives data of RA.

 Configuration

Configure retransmission time, RS & TOUT interrupt mask , router IP address.

{

START :

/* set SOCKET-less Retransmission Timer, 100ms(0x03E8) (단위, 100us) */

//SLRTR[0:1] = {0x03, 0xE8};

/* set SOCKET-less Retransmission Counter, 5 */

//SLRCR = 0x05;

/* set Interrupt Mask Bit */

//SLIMR[RS] = ‘1’;

// RS Interrupt Mask Bit

//SLIMR[TOUT] = ‘1’; // TIMEOUT Interrupt Mask Bit

}

 SOCKET-less Command

SLCR[RS] transmits RS packet.

{

SLCR[RS] = ‘1’; /* set RS Command */

while(SLCR != 0x00) ; /* Wait until RS Command is completed*/

}

 Response?

If there is RA packet from a router, SLIR[RS] is set.

{

/* check RS Interrupt */

if(SLIR[RS] == ‘1’) /* received RA Packet */

{

SLIRCLR[RS] = ‘1’; /* clear Interrupt */

goto Configuration;

}

else goto Timeout?;

}

W6100 Datasheet(PDF) 127 Page - WIZnet Co., Ltd