LAN91C110 General Description
	Data Sheet, Application Notes, Drivers and Design Tools

Features

	Dual Speed CSMA/CD Engine (10 Mbps and 100 Mbps)
	Compliant with IEEE 802.3 100BASE-T Specification
	Supports 100BASE-TX and 100BASE-T4
	16 Bit Wide Data Path (into Packet Buffer Memory)
	Generic 16 Bit System Level Interface Easily Adaptable to ISA, PCMCIA (16 Bit CardBus), and Various CPU System Interfaces
	Support for 16 and 8 Bit CPU Accesses
	Asynchronous Bus Interface
	128 Kbyte External Memory
	Built-In Transparent Arbitration for Slave Sequential Access Architecture
	Early TX, Early RX Functions
	Flat MMU Architecture with Symmetric Transmit and Receive Structures and Queues
	IEEE 802.3 MII (Media Independent Interface) Compliant MAC-PHY Interface Running at Nibble Rate
	MII Management Serial Interface
	IEEE-802.3u Full Duplex Capability
	144 Pin TQFP Package (1.0 Millimeter Height)

General Description

The LAN91C110 is designed to facilitate the implementation of second generation Fast Ethernet PC Card adapters and other non-PCI connectivity products. The LAN91C110 is a digital device that implements the Media Access Control (MAC) portion of the CSMA/CD protocol at 10 and 100 Mbps, and couples it with a lean and fast data and control path system architecture to ensure that the CPU to packet RAM data movement does not cause a bottleneck at 100 Mbps.

The LAN91C110 implements a generic 16-bit host interface which is adaptable to a wide range of system buses and CPUs. This makes the LAN91C110 ideal for 10/100 Fast Ethernet implementations in systems based on system buses other than PCI.

Total memory size is 128 Kbytes, equivalent to a total chip storage (transmit plus receive) of 64 outstanding packets. The LAN91C110 is software compatible with the LAN9000 family of products in the default mode and can use existing LAN9000 drivers (ODI, IPX, and NDIS) with minor modifications in 16 and 32 bit Intel X86 based environments.

Memory management is handled using a unique MMU (Memory Management Unit) architecture and a 32 bit wide data path. This I/O mapped architecture can sustain back-to-back frame transmission and reception for superior data throughput and optimal performance. It also dynamically allocates buffer memory in an efficient buffer utilization scheme, reducing software tasks and relieving the host CPU from performing these housekeeping functions. The total memory size is 128 Kbytes (external), equivalent to a total chip storage (transmit and receive) of 64 outstanding packets.

FEAST provides a flexible slave interface for easy connectivity with industry-standard buses. The host interface is "ISA-like" and is easily adapted to a wide range of system and CPU buses.

An IEEE-802.3 compliant Media Independent Interface (MII) is provided on the network side of the LAN91C110. The MII interface allows the use of a wide range of MII compliant physical layer (PHY) devices to be used with the LAN91C110. The LAN91C110 also provides an interface to the two-line MII serial management protocol.

LAN91C110 Data Sheet, Application Notes,
Drivers and Design Tools

Description	File Name	File Size	Date
LAN91C110 Rev. B Data Sheet	91c110revb.pdf	483K	9/5/02
Evaluation Boards	EVB110G-ISA EVB110-PC-D
Reference Design Files
LAN91C110 ISA MAC Reference Design	91c110ref.pdf	105K	8/27/98
LAN91C110 Reference Design Schematic	110pcmdu.pdf	158K	5/26/99
LAN9000 Diagnostic and Setup Utilities	utility.zip	302K	6/15/07
Gerber Files	b0071.zip	349K	3/4/99
Application Notes
Application Note 6-1: Low Level Ethernet Diagnostic Tools - ETX.EXE Debug Software	an61.pdf	222K	7/17/07
Application Note 6-20: LAN91C100 and LAN91C100FD Design Considerations in 10 Mbps Half Duplex Mode	an620.pdf	114K	11/28/00
Application Note 8-2: SMSC LAN91C100 and LAN91C110 FEAST Competitive Comparison in Embedded and PC Card Applications	an82.pdf	218K
Application Note 8-5: Migrating from LAN91C100FD (FEAST FD) to LAN91C110 (Reduced-Pin-Count FEAST FD) - Software Modifications in Drivers and Utilities	an85.pdf	96K	11/17/98
Application Note 8-10: LAN91C100FD/LAN91C110 Minimum SRAM Access Time Requirement and a List of Recommended SRAMs	an810.pdf	125K	7/12/00
Application Note 9-8: I/O-Based (Non-DMA) Non-PCI Embedded Ethernet Solutions	an98.pdf	126K	9/27/01
Application Note 9-11: Understanding the Chip ID and Revision Registers	an911.pdf	111K	8/6/01
Drivers
Microsoft Drivers     NDIS 2 for Windows for Workgroups         & OS/2     NDIS 3/NDIS 4 for Windows 95, Windows         NT 4.0, Windows 98, & Windows 2000     NDIS 4 for Windows CE 2.1x	ndis2.zip ndis3-4.zip ce9000.zip	121K 443K 63K	8/20/98 6/30/00 10/27/99
Novell Drivers     DOS-ODI & OS/2, Server	novell.zip	501K	5/26/00
SCO Drivers	s9192.tar	210K	8/20/98
FreeBSD Unix Drivers	smc9k.tar.gz	17K	8/20/98
Source Code
Download SRC-9000-CE	SRC-9000-CE
Download SRC-9000-CENET86	SRC-9000-CENET86
Download SRC-9000	SRC-9000
Other Information
Object Code	Unlimited royalty-free distribution rights when offered with SMSC controller
Anomaly	Contact your local SMSC representative
Using the Adobe® Acrobat® Reader	aacrobat.html