LAN9218I-MT-E2 SMSC [SMSC Corporation], LAN9218I-MT-E2 Datasheet - Page 10

• Manufacturer Part Number: LAN9218I-MT-E2
• Description: High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX & Industrial Temperature Support
• Manufacturer: SMSC [SMSC Corporation]

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Revision 1.5 (07-18-06)
1.1
Microprocessor/
Microcontroller
System Memory
The SMSC LAN9218I 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 LAN9218I 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 LAN9218I in a typical
embedded environment.
The LAN9218I is a general purpose, platform independent, Ethernet controller. The LAN9218I consists
of four major functional blocks. The four blocks are:
The LAN9218I is driver-, register-, and footprint-compatible with previous generation LAN9118 Family
devices. Drivers written for these products will work with the LAN9218I. 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 LAN9218I will be available on SMSC’s website.
Compatibility with First-generation LAN9118 Family Devices
10/100 Ethernet PHY
10/100 Ethernet MAC
RX/TX FIFOs
Host Bus Interface (HBI)
System Bus
Figure 1.1 System Block Diagram
High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX & Industrial Temperature Support
DATASHEET
System Memory
LAN9218I
25MHz
XTAL
Peripherals
System
10
EEPROM
(Optional)
Magnetics
LEDS/GPIO
Ethernet
SMSC LAN9218I
Datasheet