LAN89218AQ SMSC, LAN89218AQ Datasheet - Page 10

• Manufacturer Part Number: LAN89218AQ
• Description: Ethernet ICs High Perform Chip 10/100 NonPCI Cntrl
• Manufacturer: SMSC

Specifications of LAN89218AQ

• Ethernet Connection Type: 10BASE-T, 100BASE-TX
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Standard Supported: IEEE802.3, IEEE802.3u
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 85 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 1 General Description
Revision 1.3 (02-23-10)
The LAN89218 is a full-featured, single-chip 10/100 Ethernet controller that has been designed to
provide the highest performance possible for 32/16-bit applications. The LAN89218 includes an
integrated Ethernet MAC and PHY with a high-performance SRAM-like slave interface. The simple, yet
highly functional host bus interface provides a glue-less connection to most common 16-bit and 32-bit
microprocessors and microcontrollers. The integrated checksum offload engines enable the automatic
generation of the 16-bit checksum for received and transmitted Ethernet frames, offloading the task
from the CPU. The LAN89218 also includes large transmit and receive data FIFOs with a high-speed
host bus interface to accommodate high bandwidth, high latency applications. In addition, the
LAN89218 memory buffer architecture allows highly efficient use of memory resources by optimizing
packet granularity.
Applications
The LAN89218 is well suited for many high performance automotive applications, including:
The LAN89218 also supports features which reduce or eliminate packet loss. Its internal 16-kByte
SRAM can hold over 200 received packets. If the receive FIFO gets too full, the LAN89218 can
automatically generate flow control packets to the remote node, or assert back-pressure on the remote
node by generating network collisions.
The LAN89218 supports numerous power management and wakeup features. The LAN89218 can be
placed in a reduced power mode and can be programmed to issue an external wake signal via several
methods, including “Magic Packet”, “Wake on LAN” and “Link Status Change”. This signal is ideal for
triggering system power-up using remote Ethernet wakeup events. The device can be removed from
the low power state via a host processor command.
The SMSC LAN89218 integrated 10/100 MAC/PHY controller performs the function of translating
parallel data from a host controller into Ethernet packets. The LAN89218 Ethernet MAC/PHY controller
is designed and optimized to function in an embedded environment. All communication is performed
with programmed I/O transactions using the simple SRAM-like host interface bus.
The figure below summarizes a system configuration of the LAN89218 in a typical embedded
environment.
Diagnostic interface (for dealership service bay)
Fast software download interface (e.g. OBD connector)
Gateway service interface (dealership, aftermarket repair shop)
In-vehicle engineering development interface
Vehicle manufacturing test interface (production plant assembly line)
Legislated inspections (emissions check, safety inspections)
High Performance Single-Chip 10/100 Ethernet Controller for Automotive Applications
DATASHEET
10
SMSC LAN89218
Datasheet