LAN9312 Datasheet, PDF (361/458 Pages) SMSC Corporation – High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
14.5.2.39 Port x MAC Transmit Excessive Collision Count Register (MAC_TX_EXCCOL_CNT_x)
Register #:
Port0: 0460h
Port1: 0860h
Port2: 0C60h
Size:
32 bits
This register provides a counter of transmitted packets which experienced 16 collisions. The counter
is cleared upon being read.
BITS
DESCRIPTION
31:0 TX Excessive Collision
Count of transmitted packets that experienced 16 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 1466 hours.
TYPE
RC
DEFAULT
00000000h
SMSC LAN9312
361
DATASHEET
Revision 1.2 (04-08-08)