SMSC LAN9311 User Manual

Page of 460
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08)
328
SMSC LAN9311/LAN9311i
DATASHEET
 
14.5.2.5
Port x MAC Receive 65 to 127 Byte Count Register (MAC_RX_65_TO_127_CNT_x)
This register provides a counter of received packets between the size of 65 to 127 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.
Register #:
Port0: 0412h
Size:
32 bits
Port1: 0812h
Port2: 0C12h
BITS
DESCRIPTION
TYPE
DEFAULT
31:0
RX 65 to 127 Bytes
Count of packets (including bad packets) that have between 65 and 127 
bytes.
Note:
This counter will stop at its maximum value of FFFF_FFFFh. 
Minimum rollover time at 100Mbps is approximately 487 hours.
RC
00000000h