LAN9117-MT SMSC, LAN9117-MT Datasheet - Page 25

• Manufacturer Part Number: LAN9117-MT
• Description: IC ETHERNET CTRLR 10/100 100TQFP
• Manufacturer: SMSC

Specifications of LAN9117-MT

• Controller Type: Ethernet Controller
• Interface: Serial EEPROM
• Voltage - Supply: 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Other names: 638-1012

High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
SMSC LAN9117
LAN Switch #2
AAA
Network efficiency: Allows shielding one system resource from traffic not meant for that resource. A
workstation in one VLAN is shielded from traffic on another VLAN, increasing that workstation’s
efficiency.
Broadcast containment: Leakage of broadcast frames from one VLAN to another is prevented.
When the members of a VLAN are not located on the same physical medium, the VLAN uses a tag
to help it determine how to forward the frame from one member to another. The tag structure was
proprietary until the IEEE released a supplement to 802.3 defining the VLAN frame structure, including
the tag. This new frame structure for VLAN is depicted in Figure 3.2, "VLAN Frame".
VLAN 3
BBB
Address
GGG
AAA
BBB
CCC
DDD
EEE
HHH
FFF
CCC
VLAN Config Data
LAN Switch #1
Figure 3.1 VLAN Topology
VLAN #
VLAN 3
VLAN 3
VLAN 3
VLAN 2
VLAN 2
VLAN 2
VLAN 1
VLAN 1
DATASHEET
DDD
25
VLAN 2
EEE
FFF
LAN Switch #3
GGG
VLAN 1
Revision 1.5 (07-11-08)
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