Ethernet Subsystem Registers
14.5.3.11 CPTS_EVENT_HIGH Register (offset = 38h) [reset = 0h]
CPTS_EVENT_HIGH is shown in
and described in
UPPER 32-BITS OF THE EVENT VALUE
Figure 14-88. CPTS_EVENT_HIGH Register
31
30
29
28
27
26
25
24
Reserved
PORT_NUMBER
R-0h
R-0h
23
22
21
20
19
18
17
16
EVENT_TYPE
MESSAGE_TYPE
R-0h
R-0h
15
14
13
12
11
10
9
8
SEQUENCE_ID
R-0h
7
6
5
4
3
2
1
0
SEQUENCE_ID
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 14-100. CPTS_EVENT_HIGH Register Field Descriptions
Bit
Field
Type
Reset
Description
31-29
Reserved
R
0h
28-24
PORT_NUMBER
R
0h
Port Number - indicates the port number of an ethernet event or the
hardware push pin number (1 to 4).
23-20
EVENT_TYPE
R
0h
Time Sync Event Type
0000 - Time Stamp Push Event
0001 - Time Stamp Rollover Event
0010 - Time Stamp Half Rollover Event
0011 - Hardware Time Stamp Push Event
0100 - Ethernet Receive Event
0101 - Ethernet Transmit Event
19-16
MESSAGE_TYPE
R
0h
Message type - The message type value that was contained in an
ethernet transmit or receive time sync packet.
This field is valid only for ethernet transmit or receive events.
15-0
SEQUENCE_ID
R
0h
Sequence ID - The
16-bit sequence id is the value that was contained in an ethernet
transmit or receivetime sync packet.
This field is valid only for ethernet transmit or receive events.
1320
Ethernet Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated