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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i 229 Revision 1.4 (08-19-08)
DATASHEET
14.2.5.24 1588 Command Register (1588_CMD)
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.
Offset: 19Ch Size: 32 bits
BITS DESCRIPTION TYPE DEFAULT
31:1 RESERVED RO -
0
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.
WO
SC
0b