Register (1588_seq_id_src_uuid_hi_tx_capture_x), Section 14.2.5.7, Datasheet – SMSC LAN9312 User Manual

Page 207

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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

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