SMSC LAN9420 - Manual (Page 98)

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
Revision 1.22 (09-25-08) 98 SMSC LAN9420/LAN9420i
DATASHEET
4.2.10 Free Run Counter (FREE_RUN)
This register reflects the value of the free-running (6.25Mhz) counter (FRC).
Offset: 00F4h Size: 32 bits
BITS DESCRIPTION TYPE DEFAULT
31:0 Free Running Counter (FR_CNT)
This field reflects the value of a free-running 32-bit counter. At reset, the
counter starts at zero and is incremented for every 160ns cycle. When the
maximum count has been reached the counter will rollover. Refer to
Section
3.3.4, "Free-Run Counter (FRC)," on page 31 for more information on the
FRC.
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