SMSC LAN9312 - Manual (Page 362)

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08) 362 SMSC LAN9312
DATASHEET
14.5.2.41 Port x MAC Transmit Multiple Collision Count Register (MAC_TX_MULTICOL_CNT_x)
This register provides a counter of transmitted packets which experienced between 2 and 15 collisions.
The counter is cleared upon being read.
Register #: Port0: 0462h Size: 32 bits
Port1: 0862h
Port2: 0C62h
BITS DESCRIPTION TYPE DEFAULT
31:0 TX Excessive Collision
Count of transmitted packets that experienced between 2 and 15 collisions.
This counter is incremented only in half-duplex operation.
Note: This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 664 hours.
RC 00000000h