KSZ9567R_V01 datasheet(117/233 Pages) MICROCHIP

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DS00002329E-page 117

KSZ9567R

5.1.6.12

Global PTP Message Config 2 Register

Enable Detection of IPv4/UDP PTP Messages

1 = enable

0 = disable

R/W

Enable Detection of IPv6/UDP PTP Messages

1 = enable

0 = disable

R/W

Selection of P2P or E2E

1 = Peer-to-peer (P2P) transparent clock mode

0 = End-to-end (E2E) transparent clock mode

R/W

Selection of Master or Slave

1 = Host port is PTP master ordinary clock

0 = Host port is PTP slave ordinary clock

R/W

Selection of One-step or Two-step Operation

1 = One-step clock mode

0 = Two-step clock mode

R/W

Address:

0x0516 - 0x0517

Size:

16 bits

Bits

Description

Type

Default

15:13

RESERVED

000b

Enable Unicast PTP

1 = The unicast PTP frames can be recognized. If the packet UDP

destination port is either 319 or 320 and the frame MAC/IP address is not the

PTP reserved address, then the frame will be considered as a unicast PTP

frame and the frame forwarding will be decided by regular lookup table.

0 = Only multicast PTP frames will be recognized.

R/W

Enable Alternate Master

1 = Alternate master clock is supported. The Sync/Delay_Req frames of the

same domain received at non-host ports by active master clock of the same

domain will be forwarded to the non-host ports.

0 = Alternate master clock is not supported. The Sync/Delay_Req frames of

the same domain received at non-host ports by active master clock of the

same domain will be discarded on the host port and will be forwarded to the

non-host ports if Sync/Delay_Req is for other domains.

R/W

PTP Messages Priority TX Queue

1 = All PTP messages are assigned to the highest priority TX queue.

0 = Only the PTP event messages are assigned to the highest priority TX

queue.

R/W

Enable Checking of Associated Sync and Follow_up PTP messages

Setting this bit will associate Follow_up message with Sync message when it

has the same domain, sequenceID and sourcePortID. The PTP frame will be

forwarded to the host port if the ID matches.

R/W

Bits

Description

Type

Default

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