lan9211 Standard Microsystems Corp., lan9211 Datasheet - Page 10

• Manufacturer Part Number: lan9211
• Description: Lan9211 High-performance Small Form Factor Single-chip Ethernet Controller With Hp Auto-mdix Support
• Manufacturer: Standard Microsystems Corp.

Revision 2.3 (08-06-08)
1.1
Microprocessor/
Microcontroller
System Memory
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:
Block Diagram
10/100 Ethernet PHY
10/100 Ethernet MAC
RX/TX FIFOs
Host Bus Interface (HBI)
System Bus
Figure 1.1 System Block Diagram
DATASHEET
High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support
System Memory
25MHz
LAN9211
XTAL
Peripherals
System
10
(Optional)
EEPROM
Magnetics
LEDS/GPIO
Ethernet
SMSC LAN9211
Datasheet