LAN9311 Datasheet, PDF (229/461 Pages) SMSC Corporation – Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
14.2.5.24 1588 Command Register (1588_CMD)
Offset:
19Ch
Size:
32 bits
This register is used to issue 1588 commands. Using the clock snapshot bit allows the host to properly
read the current IEEE 1588 clock values from the 1588 Clock High-DWORD Register
(1588_CLOCK_HI) and 1588 Clock Low-DWORD Register (1588_CLOCK_LO). Refer to section
Section 11.3, "IEEE 1588 Clock," on page 160 for additional information.
BITS
31:1
0
DESCRIPTION
RESERVED
Clock Snapshot (1588_CLOCK_SNAPSHOT)
Setting this bit causes the current 1588 Clock High-DWORD Register
(1588_CLOCK_HI) and 1588 Clock Low-DWORD Register
(1588_CLOCK_LO) values to be saved so they can be read.
TYPE
RO
WO
SC
DEFAULT
-
0b
SMSC LAN9311/LAN9311i
229
DATASHEET
Revision 2.0 (02-14-13)