EP80579 Datasheet, PDF (1628/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
41.5.1.3
PTP Message Formats
The time sync implementation supports both IEEE1588 V1 and IEEE1588-2008 PTP
messages. formats The format for each of these is shown in Table 41-4.
When a PTP message containing packet is recognized, the PTP version is checked. If it
is V1 PTP message then the control field contains the message type. The message type
decoding is shown in Table 41-5 and Table 41-6.
Table 41-4. IEEE1588 Version 1 and IEEE1588-2008 PTP Message Formats
Offset in bytes
V1 Fields
IEEE1588-2008 Fields
0
VersionPTP
1
Transport Specific/messageId
Reserved (4 bits)/VersionPTP(4 bits)
2
VersionNetwork
3
MessageLength
4
SubdomainNumber
5
Reserved
6
Flags
7
8
9
10
11
Subdomain
12
CorrectionNs
13
14
CorrectionSubNs
15
16
17
Reserved
18
19
20
MessageType
Reserved
21
Source communication technology Source communication technology
22
23
24
Sourceuuid
25
Sourceuuid
26
27
28
Sourceportid
29
Sourceportid
30
SequenceID
31
SequenceID
Intel^® EP80579 Integrated Processor Product Line Datasheet
1628
August 2009
Order Number: 320066-003US