LAN91C111 Datasheet PDF - SMC

General Description

●The SMSC LAN91C111 is designed to facilitate the implementation of a third generation of Fast

●Ethernet connectivity solutions for embedded applications. For this third generation of products,

●flexibility and integration dominate the design requirements. The LAN91C111 is a mixed signal

●Analog/Digital device that implements the MAC and PHY portion of the CSMA/CD protocol at 10 and 100 Mbps. The design will also minimize data throughput constraints utilizing a 32-bit, 16-bit or 8-bit bus Host interface in embedded applications.

●The total internal memory FIFO buffer size is 8 Kbytes, which is the total chip storage for transmit and receive operations.

●The SMSC LAN91C111 is software compatible with the LAN9000 family of products.

●PRODUCT FEATURES

●„ Single Chip Ethernet Controller

●„ Dual Speed - 10/100 Mbps

●„ Fully Supports Full Duplex Switched Ethernet

●„ Supports Burst Data Transfer

●„ 8 Kbytes Internal Memory for Receive and Transmit FIFO Buffers

●„ Enhanced Power Management Features

●„ Optional Configuration via Serial EEPROM Interface

●„ Supports 8, 16 and 32 Bit CPU Accesses

●„ Internal 32 Bit Wide Data Path (Into Packet Buffer Memory)

●„ Built-in Transparent Arbitration for Slave Sequential Access Architecture

●„ Flat MMU Architecture with Symmetric Transmit and Receive Structures and Queues

●„ 3.3V Operation with 5V Tolerant IO Buffers (See Pin List Description for Additional Details)

●„ Single 25 MHz Reference Clock for Both PHY and MAC

●„ External 25Mhz-output pin for an external PHY supporting PHYs physical media.

●„ Low Power CMOS Design

●„ Supports Multiple Embedded Processor Host Interfaces

●  —ARM

●  —SH

●  — Power PC

●  — Coldfire

●  — 680X0, 683XX

●  — MIPS R3000

●„ 3.3V MII (Media Independent Interface) MAC-PHY Interface Running at Nibble Rate

●„ MII Management Serial Interface

●„ 128-Pin QFP package; lead-free RoHS compliant package also available.

●„ 128-Pin TQFP package, 1.0 mm height; lead-free RoHS compliant package also available.

●„ Commercial Temperature Range from 0°C to 70°C (LAN91C111)

●„ Industrial Temperature Range from -40°C to 85°C (LAN91C111i)

●Network Interface

●„ Fully Integrated IEEE 802.3/802.3u-100Base-TX/10Base-T Physical Layer

●„ Auto Negotiation: 10/100, Full / Half Duplex

●„ On Chip Wave Shaping - No External Filters Required

●„ Adaptive Equalizer

●„ Baseline Wander Correction

●„ LED Outputs (User selectable – Up to 2 LED functions at one time)

●  — Link

●  — Activity

●  — Full Duplex

●  — 10/100

●  — Transmit

●  — Receive