SMSC LAN9311 User Manual
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08)
326
SMSC LAN9311/LAN9311i
DATASHEET
14.5.2.3
Port x MAC Receive Undersize Count Register (MAC_RX_UNDSZE_CNT_x)
This register provides a counter of undersized packets received by the port. The counter is cleared
upon being read.
upon being read.
Register #:
Port0: 0410h
Size:
32 bits
Port1: 0810h
Port2: 0C10h
Port2: 0C10h
BITS
DESCRIPTION
TYPE
DEFAULT
31:0
RX Undersize
Count of packets that have less than 64 byte and a valid FCS.
Count of packets that have less than 64 byte and a valid FCS.
Note:
This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 115 hours.
Minimum rollover time at 100Mbps is approximately 115 hours.
RC
00000000h