Datasheet

Register 38: Ethernet MAC Timestamp Control (EMACTIMSTCTRL), offset
0x700
This register controls the operation of the system time generator and the processing of Precision
Time Protocol (PTP) packets for time-stamping in the receiver.
Ethernet MAC Timestamp Control (EMACTIMSTCTRL)
Base 0x400E.C000
Offset 0x700
Type RW, reset 0x0000.2000
16171819202122232425262728293031
SELPTPPTPFLTRreserved
RWRWRWROROROROROROROROROROROROROType
0000000000000000Reset
0123456789101112131415
TSEN
TSFCUPDT
TSINITTSUPDTINTTRIG
ADDREGUP
reservedALLFDGTLBINPTPVER2PTPETHPTPIPV6PTPIPV4TSEVNTTSMAST
RWRWRWRWRWRWRORORWRWRWRWRWRWRWRWType
0000000000000100Reset
DescriptionResetTypeNameBit/Field
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
0x0ROreserved31:19
Enable MAC address for PTP Frame Filtering
DescriptionValue
No effect.0
The Destination Address (DA) MAC address, that matches any
MAC Address register is used to filter PTP frames when PTP
is directly sent over Ethernet.
1
0x0RWPTPFLTR18
Select PTP packets for Taking Snapshots
These bits along with Bits 15 and 14 decide the set of PTP packet types
for which a snapshot needs to be taken.
0x0RWSELPTP17:16
Enable Snapshot for Messages Relevant to Master
DescriptionValue
The snapshot is taken for the messages relevant to the slave
node.
0
The snapshot is taken only for the messages relevant to the
master node.
1
0x0RWTSMAST15
Enable Timestamp Snapshot for Event Messages
DescriptionValue
The snapshot is taken for all messages except Announce,
Management, and Signaling.
0
The timestamp snapshot is taken only for event messages
(SYNC, Delay_Req, Pdelay_Req, or Pdelay_Resp).
1
0x0RWTSEVNT14
December 13, 20131726
Texas Instruments-Advance Information
Ethernet Controller