W6100 datasheet(112/149 Pages) WIZNET

112 / 149 page

W6100 – Hardwired Dual TCP/IP Stack Controller

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Figure 28 Received DATA in IPRAW6 Mode SOCKET RX Buffer Block

Table 9 parameters of ‘PACKET INFO’ in IPRAW6 Mode

PACKET INFO

Description

IPv6

If IPv6 Packet is received, set to ‘1’

ALL

If All Node Packet is received, set to ‘1’

MUL

If Multicast Packet is received, set to ‘1’

GUA

If Destination Address is GUA, set to ‘1’

LLA

If Destination Address is LLA, set to ‘1’

DATA Length

The length of *IPRAW DATA

Destination IPv6 Address

Destination IPv6 Address (16 Byte)

IPRAW4 Mode :

{

/* receive PACKINFO */

goto 6.2.1 TCP S: Receiving Process with get_size = 6;

/* extract Destination DATA Size, IP Address in PACKET INFO*/

data_size = (destination_address[0] << 8) + destination_address[1];

dest_ip[0:3] = destination_address[2:5];

/* read UDP DATA */

goto 6.2.1 TCP SERVER : Receiving Process with get_size = data_size;

}

IPRAW6 Mode :

{

/* receive PACKINFO */

goto 6.2.1 TCP SERVER: Receiving Process with get_size = 18;

/* extract Destination Information, DATA Size, IP Address in PACKET INFO */

data_Info = destination_address[0] & “11111000”;

data_size = (destination_address[0] & “00000111” << 8) + (destination_address[1];

W6100 Datasheet(PDF) 112 Page - WIZnet Co., Ltd