LAN9116 Datasheet, PDF (5/109 Pages) SMSC Corporation – Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller

LAN9116
FIGURE 1-1:
SYSTEM BLOCK DIAGRAM UTILIZING THE LAN9116
System Memory
System Memory
System
Peripherals
Embedded
Microprocessor/
Microcontroller
System Bus
LAN9116
Magnetics
LEDS/GPIO
Ethernet
25MHz
XTAL
EEPROM
(Optional)
The Microchip LAN9116 integrated 10/100 MAC/PHY controller is a peripheral chip that performs the function of trans-
lating parallel data from a host controller into Ethernet packets. The LAN9116 Ethernet MAC/PHY controller is designed
and optimized to function in an embedded environment. All communication is performed with programmed I/O transac-
tions using the simple SRAM-like host interface bus.
The diagram shown above, describes a typical system configuration of the LAN9116 in a typical embedded environ-
ment.
The LAN9116 is a general purpose, platform independent, Ethernet controller. The LAN9116 consists of four major func-
tional blocks. The four blocks are:
• 10/100 Ethernet PHY
• 10/100 Ethernet MAC
• RX/TX FIFOs
• Host Bus Interface (HBI)
 2005-2016 Microchip Technology Inc.
DS00002268A-page 5