SMSC LAN9312 - Manual (Page 348)

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08) 348 SMSC LAN9312
DATASHEET
14.5.2.27 Port x MAC Transmit OK Count Register (MAC_TX_PKTOK_CNT_x)
This register provides a counter of successful transmissions. The counter is cleared upon being read.
Register #: Port0: 0453h Size: 32 bits
Port1: 0853h
Port2: 0C53h
BITS DESCRIPTION TYPE DEFAULT
31:0 TX OK
Count of successful transmissions. Undersize packets are not included in
this count.
Note: This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 481 hours.
RC 00000000h