LAN9215-MT datasheet(11/144 Pages) SMSC

Part #	LAN9215-MT

Description	16-bit Non-PCI 10/100 Ethernet Controller with HP Auto-MDIX Support

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Manufacturer	SMSC [SMSC Corporation]

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16-bit Non-PCI 10/100 Ethernet Controller with HP Auto-MDIX Support

Datasheet

SMSC LAN9215

11

Revision 2.9 (03-01-12)

DATASHEET

1.1

Block Diagram

The SMSC LAN9215 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 LAN9215 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 LAN9215 in a typical

embedded environment.

The LAN9215 is a general purpose, platform independent, Ethernet controller. The LAN9215 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)

1.2

Compatibility with First-generation LAN9118 Family Devices

The LAN9215 is driver-, register-, and footprint-compatible with previous generation LAN9118 Family

devices. Drivers written for these products will work with the LAN9215. However, in order to support

HP Auto-MDIX, other components such as the magnetics and the passive components around the

magnetics need to change, and supporting these changes does require a minor PCB change. A

reference design for the LAN9215 will be available on SMSC’s website.

Figure 1.1 System Block Diagram

Microprocessor/

Microcontroller

LAN9215

System

Peripherals

System Memory

EEPROM

(Optional)

25MHz

XTAL

System Bus

Magnetics

Ethernet

LEDS/GPIO

External

PHY

MII

Magnetics

Optional

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