Port x 1588 clock low-dword transmit capture, Register (1588_clock_lo_tx_capture_x), Section 14.2.5.6 – SMSC LAN9312 User Manual
Page 206: Datasheet
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08)
206
SMSC LAN9312
DATASHEET
14.2.5.6
Port x 1588 Clock Low-DWORD Transmit Capture Register (1588_CLOCK_LO_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
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: 114h
Size:
32 bits
Port 2: 134h
Port 0: 154h
BITS
DESCRIPTION
TYPE
DEFAULT
31:0
Timestamp Low (TS_LO)
This field contains the low 32-bits of the timestamp taken on the
transmission of a 1588 Sync or Delay_Req packet.
RO
00000000h