LAN9313 Datasheet, PDF (191/398 Pages) SMSC Corporation – Three Port 10/100 Managed Ethernet Switch with MII

Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
13.1.4.24 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 10.3, "IEEE 1588 Clock," on page 139 for additional information.
BITS
DESCRIPTION
31:1 RESERVED
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.
TYPE
RO
WO
SC
DEFAULT
-
0b
SMSC LAN9313/LAN9313i
191
DATASHEET
Revision 1.2 (04-08-08)