DescriptionResetTypeNameBit/Field
Enable Processing of PTP Frames Sent over IPv4-UDP
DescriptionValue
The MAC ignores PTP transported over UDP-IPv4 packets.
This bit is set by default.
0
The MAC receiver processes PTP packets encapsulated in UDP
over IPv4 packets.
1
0x1RWPTPIPV413
Enable Processing of PTP Frames Sent Over IPv6-UDP
DescriptionValue
The MAC ignores PTP transported over UDP-IPv6 packets.0
The MAC receiver processes PTP packets encapsulated in UDP
over IPv6 packets.
1
0x0RWPTPIPV612
Enable Processing of PTP Over Ethernet Frames
DescriptionValue
The MAC ignores PTP over Ethernet packets.0
The MAC receiver processes PTP packets encapsulated directly
in Ethernet frames.
1
0x0RWPTPETH11
Enable PTP Packet Processing For Version 2 Format
DescriptionValue
PTP packets are processed using the IEEE 1588 version 1
format.
0
PTP packets are processed using the IEEE 1588 version 2
format.
1
0x0RWPTPVER210
Timestamp Digital or Binary Rollover Control
DescriptionValue
The TTSLO field of the EMACTARGNANO register, offset 0x720,
rolls over after 0x7FFF_FFFF and increments the
EMACTARGSEC register. The sub-second increment has to
be programmed correctly depending on the MOSC frequency
and the value of this bit.
0
The EMACTARGNANO register rolls over after 0x3B9A.C9FF
value (that is, 1 nanosecond accuracy) and increments the
EMACTARGSEC register.
1
0x0RWDGTLBIN9
Enable Timestamp For All Frames
DescriptionValue
No effect.0
Timestamp snapshots are enabled for all frames received by
the MAC.
1
0x0RWALLF8
1535June 18, 2014
Texas Instruments-Production Data
Tiva
™
TM4C1294NCPDT Microcontroller