Note:
Select Two Step operation if the Operating Mode is unknown.
4.
Delay Mechanism
By default the 'DELAY MECHANISM' will be set to P2P, which will set the delay mechanism to peer to peer as
defined in IEEE 1588v2-2008.
5.
Configure Priority 1 and Priority 2 Fields
Modify the 'PRIORITY #1' and 'PRORITY #2' fields if required, otherwise it is recommended that these are left
as their default values.
These parameters modify the automatic selection of server clocks in PTP networks. Lower values mean that
the unit will be preferred against other server capable clocks during the selection process. The priority 1
value is used to manually select which server capable clock will become the grandmaster and will be used
in preference over other selection criteria including clock accuracy , so should be modified very carefully.
The priority 2 value is treated as the least important criteria, providing greater selection control between
otherwise-equal clocks
For both priority fields, the input range is 0 to 255, where 0 is the highest priority. The default setting is 128.
6.
Configure Default Domain
Modify the 'DEFAULT DOMAIN' number if required, otherwise it is recommended that it is left as its default
value of '0'.
A domain consists of one or more PTP devices communicating with each other. By default, PTP aware
devices are configured with a domain of '0'. Changing the domain will cause only devices with the specified
domain to communicate using the PTP protocol. The input range is 0 to 127 and 254.
7.
Peer Delay Request Interval
By default, the 'PEER DELAY REQUEST INTERVAL' is set to 1 second
8.
Announce Interval
By default, the 'ANNOUNCE INTERVAL' is set to 1 second.
9.
Announce Receipt Timeout
By default the 'ANNOUNCE RECEIPT TIMEOUT' is set to 3. This means that after 3 announce intervals, if
the device has not recieved an announce message it will trigger an announce receipt timeout event, which will
move the port into a listening state.
10.
Sync Interval
By default, the 'SYNC INTERVAL' is set to 1 second
Provisioning
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2022 Microchip Technology Inc.
and its subsidiaries
Manual
DS00004572A-page 125
