LAN9311-NU Standard Microsystems (SMSC), LAN9311-NU Datasheet - Page 333

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LAN9311-NU

Manufacturer Part Number
LAN9311-NU
Description
TWO PORT 10/100 MANAGED ETHERNET SWITCH
Manufacturer
Standard Microsystems (SMSC)
Datasheet

Specifications of LAN9311-NU

Lead Free Status / RoHS Status
Compliant

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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
14.5.2.10
BITS
31:0
RX Oversize
Count of packets that have more than the maximum allowable number of
bytes and a valid FCS. The max number of bytes is 1518 for untagged
packets and 1522 for tagged packets. If Jumbo2K (bit 3) is set in the
MAC Receive Configuration Register
of bytes is 2048.
Note:
Port x MAC Receive Oversize Count Register (MAC_RX_OVRSZE_CNT_x)
This register provides a counter of received packets with a size greater than the maximum byte size.
The counter is cleared upon being read.
Note: For this counter, a packet with the maximum number of bytes that is not an integral number of
This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 8813 hours.
bytes (e.g. a 1518 1/2 byte packet) is not considered oversize.
Register #:
Port0: 0417h
Port1: 0817h
Port2: 0C17h
DESCRIPTION
DATASHEET
(MAC_RX_CFG_x), the max number
333
Size:
32 bits
Port x
TYPE
RC
Revision 1.7 (06-29-10)
00000000h
DEFAULT

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