LAN9311-NU SMSC, LAN9311-NU Datasheet - Page 370

• Manufacturer Part Number: LAN9311-NU
• Description: IC ETHER SW 2PRT 16BIT 128-VTQFP
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9311-NU

• Controller Type: Ethernet Switch Controller
• Interface: Serial EEPROM
• Voltage - Supply: 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Maximum Operating Temperature: + 70 C
• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• For Use With: 638-1076 - EVALUATION BOARD LAN9311-NU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1075

Revision 1.7 (06-29-10)
14.5.3.3
31:25
20:19
BITS
24
23
22
21
RESERVED
Valid
When set, this bit makes the entry valid. It can be cleared to invalidate a
previous entry that contained the specified MAC address.
Age/Override
This bit is used by the aging and forwarding processes.
If the Static bit of this register is cleared, this bit should be set so that the
entry will age in the normal amount of time.
If the Static bit is set, this bit is used as a port state override bit. When set,
packets received with a destination address that matches the MAC address
in the SWE_ALR_WR_DAT_1 and SWE_ALR_WR_DAT_0 registers will be
forwarded regardless of the port state of the ingress or egress port(s). This
is typically used to allow the reception of BPDU packets in the non-
forwarding state.
Static
When this bit is set, this entry will not be removed by the aging process
and/or be changed by the learning process. When this bit is cleared, this
entry will be automatically removed after 5 to 10 minutes of inactivity.
Inactivity is defined as no packets being received with a source address that
matches this MAC address.
Note:
Filter
When set, packets with a destination address that matches this MAC
address will be filtered.
Priority
These bits specify the priority that is used for packets with a destination
address that matches this MAC address. This priority is only used if the
Static bit of this register is set, and the DA Highest Priority (bit 5) in the
Switch Engine Global Ingress Configuration Register
(SWE_GLOBAL_INGRSS_CFG)
Switch Engine ALR Write Data 1 Register (SWE_ALR_WR_DAT_1)
This register is used in conjunction with the
(SWE_ALR_WR_DAT_0)
Entry command in the
This bit is normally set when adding manual entries. It must be
cleared when removing an entry (clearing the Valid bit).
Register #:
Switch Engine ALR Command Register
and contains the last 32 bits of ALR data to be manually written via the Make
1802h
DESCRIPTION
is set.
DATASHEET
370
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Size:
Switch Engine ALR Write Data 0 Register
32 bits
(SWE_ALR_CMD).
TYPE
R/W
R/W
R/W
R/W
R/W
SMSC LAN9311/LAN9311i
RO
DEFAULT
00b
Datasheet
0b
0b
0b
0b
-