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W6100 Datasheet(PDF) 99 Page - WIZnet Co., Ltd

Part # W6100
Description  Hardwired Dual TCP/IP Stack Controller
PDF  149 Pages
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Manufacturer  WIZNET [WIZnet Co., Ltd]
Direct Link  https://www.wiznet.io/ko/Product/
Logo WIZNET - WIZnet Co., Ltd

W6100 Datasheet(HTML) 99 Page - WIZnet Co., Ltd

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W6100 – Hardwired Dual TCP/IP Stack Controller
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UDP4, UDP6 Mode :
{
START :
Sn_MR[3:0] = ‘0010’; /* set UDP4 Mode */
// Sn_MR[3:0] = ‘1010; /* set UDP6 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 */
/* check SOCKET for UDP6 Mode */
if(Sn_SR != SOCK_UDP) goto START;
}
 Received DATA?
Refer to 6.2.1 TCP SERVER: Received DATA?
 Receiving Process
UDP mode SOCKET can receive DATA packets from more than one peer. The received DATA
packet is stored in SOCKET n RX buffer block with “PACKET INFO” as shown in Figure 24.
HOST must read DATA from SOCKET n RX buffer in the format of Figure 24. If the received DATA
is fragmented or bigger than SOCKET n RX buffer free size, it is discarded.
Figure 24 Received DATA in UDP Mode SOCKET RX Buffer Block
Table 4 Parameter Description in PACKET INFO
PACKET INFO
Description
IPv6
0 : UDP/IPv4 Packet is received
1 : UDP/IPv6 Packet is received
BRD/ALL
0 : Others



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