LAN9312-NU Standard Microsystems (SMSC), LAN9312-NU Datasheet - Page 340

• 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)
14.5.2.19
BITS
31:0
RX Bytes
Count of total bytes received (including bad packets).
Note:
Port x MAC Receive Packet Length Count Register (MAC_RX_PKTLEN_CNT_x)
This register provides a counter of total bytes received. The counter is cleared upon being read.
Note: If necessary, for oversized packets, the packet is either truncated at 1518 bytes (untagged,
Note: A bad packet is one that has an FCS or Symbol error. For this counter, a packet that is not an
This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 5.8 hours.
Jumbo2K=0), 1522 bytes (tagged, Jumbo2K=0), or 2048 bytes (Jumbo2K=1). If this occurs,
the byte count recorded is 1518, 1522, or 2048, respectively. The Jumbo2K bit is located in
the
integral number of bytes (e.g. a 1518 1/2 byte packet) is rounded down to the nearest byte.
Register #:
Port x MAC Receive Configuration Register
Port0: 0420h
Port1: 0820h
Port2: 0C20h
DESCRIPTION
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
340
Size:
(MAC_RX_CFG_x).
32 bits
TYPE
RC
SMSC LAN9312
00000000h
DEFAULT
Datasheet