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
