High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

14.5.2.41Port x MAC Transmit Multiple Collision Count Register (MAC_TX_MULTICOL_CNT_x)

Register #:

Port0: 0462h

Size:

32 bits

 

Port1:

0862h

 

 

 

Port2:

0C62h

 

 

This register provides a counter of transmitted packets which experienced between 2 and 15 collisions. The counter is cleared upon being read.

BITS

DESCRIPTION

TYPE

DEFAULT

 

 

 

 

31:0

TX Excessive Collision

RC

00000000h

 

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.

 

 

 

 

 

 

Revision 1.4 (08-19-08)

362

SMSC LAN9312

 

DATASHEET