LAN9311 Datasheet, PDF (216/461 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
14.2.5.15 1588 Clock Addend Register (1588_CLOCK_ADDEND)
Offset:
178h
Size:
32 bits
This read/write register is responsible for adjusting the 64-bit 1588 Clock frequency. Refer to
Chapter 11, "IEEE 1588 Hardware Time Stamp Unit," on page 155 for details on how to properly use
this register.
BITS
31:0
DESCRIPTION
Clock Addend (CLOCK_ADDEND)
This 32-bit value is added to the 1588 frequency divisor accumulator every
cycle. This allows the base 100MHz frequency of the 64-bit 1588 Clock to
be adjusted accordingly.
TYPE
R/W
DEFAULT
00000000h
Revision 2.0 (02-14-13)
216
DATASHEET
SMSC LAN9311/LAN9311i