Data Sheet

Inline Functions—Ethernet Controller I210
353
Note: Only the fields with the bold italic format colored red are of interest to the hardware.
4
Subdomain
domain Number
5 Reserved
6
flags
7
8
correctionField
9
10
11
12
13
14
15
16
reserved
17
18
19
20 message Type
Source Port Identity
21 Source communication technology
22
Sourceuuid
23
24
25
26
27
28
source port id
29
30
sequenceId sequenceId
31
32 control control
33 reserved Log Message Interval
34
flags
PTP message body. The PTP header plus its
message body must be al least 36 bytes long to be
recognized as a PTP message.
35
1. Should be all zero.
Table 7-67. SYNC Message Structure
Offset in Bytes Length in Bytes Fields
0 34 Message Header (as listed in Table 7-66).
34 10
SYNC Timestamp. On 1-step transmission the timestamp is inserted by the hardware:
The first 2 bytes equals to SYSTIMTM.STM while its MS byte is first and its LS byte is last
The next 4 bytes equals to SYSTIMH while its MS byte is first and its LS byte is last
The next 4 bytes equals to SYSTIML while its MS byte is first and its LS byte is last
Table 7-66. V1 and V2 PTP Message Header (Continued)
Offset in Bytes V1 Fields V2 Fields
Bits 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0