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LAN9211

High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support

SMSC -> Microchip 

1.1

Block Diagram

High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support

Datasheet

System Memory

System Memory

System

Peripherals

Microprocessor/

Microcontroller

System Bus

LAN9211

Magnetics

LEDS/GPIO

Ethernet

25MHz

XTAL

EEPROM

(Optional)

Figure 1.1 System Block Diagram

The SMSC LAN9211 integrated 10/100 MAC/PHY controller is a peripheral chip that performs the

function of translating parallel data from a host controller into Ethernet packets. The LAN9211 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 diagram shown above, describes a typical system configuration of the LAN9211 in a typical

embedded environment.

The LAN9211 is a general purpose, platform independent, Ethernet controller. The LAN9211 consists

of four major functional blocks. The four blocks are:

„ 10/100 Ethernet PHY

„ 10/100 Ethernet MAC

„ RX/TX FIFOs

„ Host Bus Interface (HBI)

Revision 2.9 (03-01-12)

10

DATASHEET

SMSC LAN9211

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