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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312 207 Revision 1.4 (08-19-08)
DATASHEET
14.2.5.7 Port x 1588 Sequence ID, Source UUID High-WORD Transmit Capture Register
(1588_SEQ_ID_SRC_UUID_HI_TX_CAPTURE_x)
Note:
The selection between Sync or Delay_Req packets is based on the corresponding
master/slave bit in the 1588 Configuration Register (1588_CONFIG).
Note: There are multiple instantiations of this register, one for each port of the LAN9312. Refer to
Section 14.2.5 for additional information.
Note: For Port 0(Host MAC), receive is defined as data from the switch fabric, while transmit is to
the switch fabric.
Offset: Port 1: 118h Size: 32 bits
Port 2: 138h
Port 0: 158h
BITS DESCRIPTION TYPE DEFAULT
31:16 Sequence ID (SEQ_ID)
This field contains the Sequence ID from the 1588 Sync or Delay_Req
packet.
RO 0000h
15:0
Source UUID High (SRC_UUID_HI)
This field contains the high 16-bits of the Source UUID from the 1588 Sync
or Delay_Req packet.
RO 0000h