lan9118 Standard Microsystems Corp., lan9118 Datasheet - Page 10

• Manufacturer Part Number: lan9118
• Description: Lan9118 High-performance Single-chip 10/100 Non-pci Ethernet Controller
• Manufacturer: Standard Microsystems Corp.

Revision 1.5 (07-11-08)
Microprocessor/
Microcontroller
System Memory
The SMSC LAN9118 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 LAN9118 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 LAN9118 in a typical
embedded environment.
The LAN9118 is a general purpose, platform independent, Ethernet controller. The LAN9118 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)
Figure 1.1 System Block Diagram Utilizing the SMSC LAN9118
System Bus
DATASHEET
System Memory
25MHz
LAN9118
XTAL
Peripherals
System
10
High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
(Optional)
EEPROM
Magnetics
LEDS/GPIO
Ethernet
SMSC LAN9118
Datasheet