LAN9312-NU Standard Microsystems (SMSC), LAN9312-NU Datasheet - Page 406

• Manufacturer Part Number: LAN9312-NU
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LAN9312-NU

• Number Of Primary Switch Ports: 2
• Operating Supply Voltage (typ): 3.3V
• Fiber Support: No
• Phy/transceiver Interface: MII
• Power Supply Type: Analog
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Compliant

Revision 1.7 (06-29-10)
14.5.3.38
BITS
31:0
Learn Discard
This field is a count of MAC addresses not learned or overwritten and is
cleared when read.
Note:
Switch Engine Port 2 Learn Discard Count Register (SWE_LRN_DISCRD_CNT_2)
This register counts the number of MAC addresses on Port 2 that were not learned or were overwritten
by a different address due to address table space limitations.
This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 481 hours.
Register #:
185Ah
DESCRIPTION
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
406
Size:
32 bits
TYPE
RC
SMSC LAN9312
00000000h
DEFAULT
Datasheet