Section 14.5.2.7, Datasheet – SMSC LAN9311i User Manual

Page 330

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

Datasheet

Revision 1.4 (08-19-08)

330

SMSC LAN9311/LAN9311i

DATASHEET

14.5.2.7

Port x MAC Receive 256 to 511 Byte Count Register (MAC_RX_256_TO_511_CNT_x)

This register provides a counter of received packets between the size of 256 to 511 bytes. The counter
is cleared upon being read.

Note:

A bad packet is defined as a packet that has an FCS or Symbol error. For this counter, a packet
that is not an integral number of bytes is rounded down to the nearest byte.

Port0: 0414h

Size:

32 bits

Port1: 0814h
Port2: 0C14h

BITS

DESCRIPTION

TYPE

DEFAULT

31:0

RX 256 to 511 Bytes
Count of packets (including bad packets) that have between 256 and 511
bytes.

Note:

This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 1581 hours.

00000000h

This manual is related to the following products:

LAN9311