SMSC LAN9311 User Manual
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
331
Revision 1.4 (08-19-08)
DATASHEET
14.5.2.8
Port x MAC Receive 512 to 1023 Byte Count Register (MAC_RX_512_TO_1023_CNT_x)
This register provides a counter of received packets between the size of 512 to 1023 bytes. The
counter is cleared upon being read.
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.
that is not an integral number of bytes is rounded down to the nearest byte.
Register #:
Port0: 0415h
Size:
32 bits
Port1: 0815h
Port2: 0C15h
Port2: 0C15h
BITS
DESCRIPTION
TYPE
DEFAULT
31:0
RX 512 to 1023 Bytes
Count of packets (including bad packets) that have between 512 and 1023
bytes.
Count of packets (including bad packets) that have between 512 and 1023
bytes.
Note:
This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 3047 hours.
Minimum rollover time at 100Mbps is approximately 3047 hours.
RC
00000000h