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)
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.
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: 0414h
Size:
32 bits
Port1: 0814h
Port2: 0C14h
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.
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.
Minimum rollover time at 100Mbps is approximately 1581 hours.
RC
00000000h