LAN9218I_07 SMSC [SMSC Corporation], LAN9218I_07 Datasheet - Page 10
LAN9218I_07
Manufacturer Part Number
LAN9218I_07
Description
High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX and Industrial Temperature Support
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LAN9218I_07.pdf
(133 pages)
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Revision 1.8 (06-06-07)
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 and Industrial Temperature Support
DATASHEET
System Memory
LAN9218I
25MHz
XTAL
Peripherals
System
10
EEPROM
(Optional)
Magnetics
LEDS/GPIO
SMSC
Ethernet
LAN9218i
Datasheet
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