![NXP Semiconductors LPC43Sxx Скачать руководство пользователя страница 839](http://html1.mh-extra.com/html/nxp-semiconductors/lpc43sxx/lpc43sxx_user-manual_1721827839.webp)
UM10503
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
839 of 1441
NXP Semiconductors
UM10503
Chapter 28: LPC43xx/LPC43Sxx Ethernet
indicates the messages, for which a snapshot is taken depending on the clock,
enable master and enable snapshot for event message register settings.
28.6.17 Sub-second increment register
This register contains the 8-bit value by which the Sub-Second register is incremented.
11
TSIPENA
Enable Time stamp Snapshot for PTP over Ethernet frames
When set, the Time stamp snapshot is taken for frames which have PTP
messages in Ethernet frames (PTP over Ethernet) also. By default snapshots
are taken for UDP-IP-Ethernet PTP packets.
0
R/W
12
TSIPV6ENA
Enable Time stamp Snapshot for IPv6 frames
When set, the Time stamp snapshot is taken for IPv6 frames.
0
R/W
13
TSIPV4ENA
Enable Time stamp Snapshot for IPv4 frames
When set, the Time stamp snapshot is taken for IPv4 frames.
1
R/W
14
TSEVNTENA
Enable Time stamp Snapshot for Event Messages
When set, the Time stamp snapshot is taken for event messages only. When
reset snapshot is taken for all other messages except Announce,
Management and Signaling.
0
R/W
15
TSMSTRENA
Enable Snapshot for Messages Relevant to Master
When set, the snapshot is taken for messages relevant to master node only
else snapshot is taken for messages relevant to slave node. This is valid only
for ordinary clock and boundary clock node.
0
R/W
17:16
TSCLKTYPE
Select the type of clock node
The following are the options to select the type of clock node:
00 = ordinary clock
01 = boundary clock
10 = end-to-end transparent clock
11 = peer-to-peer transparent clock
00
R/W
18
TSENMACADDR Enable MAC address for PTP frame filtering
When set, uses the DA MAC address (that matches any MAC Address
register except the default MAC address 0) to filter the PTP frames when
PTP is sent directly over Ethernet.
0
R/W
31:19
Table 618. MAC IEEE1588 time stamp control register (MAC_TIMESTP_CTRL, address 0x4001 0700) bit description
Bit
Symbol
Description
Reset
value
Access
Table 619. Time stamp snapshot dependency on register bits
TSCLKTYPE
TSMSTRENA
TSEVNTENA
Messages for which snapshot is taken
00 or 01
x
0
SYNC, Follow_Up, Delay_Req, Delay_Resp
00 or 01
1
1
Delay_req
00 or 01
0
1
SYNC
10
N/A
0
SYNC, Follow_Up, Delay_Req, Delay_Resp
10
N/A
1
SYNC, Follow_Up
11
N/A
0
SYNC, Follow_Up, Delay_Req, Delay_Resp,
Pdelay_Req, Pdelay_Resp
11
N/A
1
SYNC, Pdelay_Req, Pdelay_Resp