LAN9311-NZW Standard Microsystem (Smsc), LAN9311-NZW Datasheet - Page 357

• Manufacturer Part Number: LAN9311-NZW
• Description: Ethernet Switch 2-Port 10Mbps/100Mbps 128-Pin XVTQFP
• Manufacturer: Standard Microsystem (Smsc)

Specifications of LAN9311-NZW

• Package: 128XVTQFP
• Phy/transceiver Interface: MII
• Number Of Primary Switch Ports: 2
• Maximum Data Rate: 100 Mbps
• Internal Memory Buffer Size: 32 KB
• Vlan Support: Yes
• Power Supply Type: Analog
• Minimum Single Supply Voltage: 3 V
• Maximum Single Supply Voltage: 3.6 V
• Maximum Supply Current: 0.295 A
• Maximum Power Dissipation: 1070 mW

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
14.5.2.34
BITS
31:0
TX Undersize
Count of packets that have less than 64 bytes.
Note:
Note:
Port x MAC Transmit Undersize Count Register (MAC_TX_UNDSZE_CNT_x)
This register provides a counter of undersized packets transmitted by the port. The counter is cleared
upon being read.
This condition could occur when TX padding is disabled and a tag
is removed.
This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 458 hours.
Register #:
Port0: 045Ah
Port1: 085Ah
Port2: 0C5Ah
DESCRIPTION
DATASHEET
357
Size:
32 bits
TYPE
RC
Revision 1.7 (06-29-10)
00000000h
DEFAULT