K60P100M100SF2RM Datasheet, PDF (1183/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Chapter 44 10/100-Mbps Ethernet MAC (ENET)
The following IP multicast groups are defined for PTP. The table also shows their
respective MAC layer multicast address mapping according to RFC 1112 (last three
octets of IP follow the fixed value of 01-00-5E).
Table 44-67. UDP/IP Multicast Domains
Name
DefaultPTPdomain
AlternatePTPdomain1
AlternatePTPdomain2
AlternatePTPdomain3
IP Address
224.0.1.129
224.0.1.130
224.0.1.131
224.0.1.132
MAC Address mapping
01-00-5E-00-01-81
01-00-5E-00-01-82
01-00-5E-00-01-83
01-00-5E-00-01-84
Message Type
Event
General
Table 44-68. UDP Port Numbers
UDP Port Note
319 Used for SYNC and DELAY_REQUEST messages
320 All other messages (e.g., follow-up, delay-response)
44.4.3.1.2 Native Ethernet (PTPv2)
In addition to using UDP/IP frames, IEEE 1588v2 defines a native Ethernet frame format
that uses ethertype = 0x88F7. The payload of the Ethernet frame immediately contains
the PTP datagram, starting with the PTPv2 header.
Besides others, version 2 adds a peer delay mechanism to allow delay measurements
between individual point-to-point links along a path over multiple nodes. The following
multicast domains are additionally defined in PTPv2.
Table 44-69. PTPv2 Multicast Domains
Name
Normal messages
Peer delay messages
MAC Address
01-1B-19-00-00-00
01-80-C2-00-00-0E
44.4.3.2 PTP Header
All PTP frames contain a common header, which determines the protocol version and the
type of message, which defines the further content of the message.
All multi-octet fields are transmitted in big-endian order (the most significant byte is
transmitted/received first).
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
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