LAN9312-NU Standard Microsystems (SMSC), LAN9312-NU Datasheet - Page 373

• 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

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
14.5.3.6
BITS
31:2
1
0
RESERVED
ALR Init Done
When set, indicates that the ALR table has finished being initialized by the
reset process. The initialization is performed upon any reset that resets the
switch fabric. The initialization takes approximately 20uS. During this time,
any received packet will be dropped. Software should monitor this bit before
writing any of the ALR tables or registers.
Make Pending
When set, indicates that the Make Entry command is taking place. This bit
is cleared once the Make Entry command has finished.
Switch Engine ALR Command Status Register (SWE_ALR_CMD_STS)
This register indicates the current ALR command status.
Note 14.62 The default value of this bit is 0 immediately following any switch fabric reset and then self-
Register #:
sets to 1 once the ALR table is initialized.
1808h
DESCRIPTION
DATASHEET
373
Size:
32 bits
TYPE
RO
RO
RO
SS
SC
Revision 1.7 (06-29-10)
Note 14.62
DEFAULT
0b
-