W6100 datasheet(65/149 Pages) WIZNET

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W6100 – Hardwired Dual TCP/IP Stack Controller

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4.2.15 Sn_DHAR (SOCKET n Destination Hardware Address

[RW] [0x0118-0x11D] [0x0000_0000_0000]

Sn_DHAR indicates the destination hardware address after the connection is established (Sn_SR

= SOCK_ESTABLISHED) with the destination in TCP4, TCP6, TCPD mode.

Sn_DHAR is set as multicast group hardware address when Sn_MR[3:0] is UDP4 or UDP6 and

Sn_MR[MULTI] is ‘1’.

ref) 6.3.3 UDP Multicast

Ex) S0_DHAR = “11:22:33:AA:BB:CC”

S0_DHAR0(0x0118)

S0_DHAR1(0x0119)

S0_DHAR2(0x011A)

0x11

0x22

0x33

S0_DHAR3(0x011B)

S0_DHAR4(0x011C)

S0_DHAR5(0x011D)

0xAA

0xBB

0xCC

4.2.16 Sn_DIPR (SOCKET n Destination IPv4 Address Register)

[RW] [0x0120-0x0123] [0x0000_0000]

Sn_DIPR indicates IPv4 destination address and depends on the protocol type in Sn_MR[3:0].

Sn_MR[3:0]

Sn_MR[MULTI]

Sn_DIPR

TCP4

Don’t care

Set or Get Destination IPv4 Address

TCPD

Don’t care

UDP4

Set Destination IPv4 Address

UDPD

Don’t care

IPRAW4

Don’t care

UDP4

Set Multicast Group IPv4 Address

ref) 6.3.3 UDP Multicast

Ex) S0_DIPR = “192.168.0.11”

S0_DIPR0(0x0120)

S0_DIPR1(0x0121)

S0_DIPR2(0x0122)

S0_DIPR3(0x0123)

192 (0xC0)

168 (0xA8)

0 (0x00)

11 (0x0B)

4.2.17 Sn_DIP6R (SOCKET n Destination IPv6 Address Register)

[RW] [0x0130-0x013F] [0x0000_0000_0000_0000_0000_0000_0000_0000]

Sn_DIPR indicates IPv6 destination address and depends on the protocol type in Sn_MR[3:0].

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