CS8900A Datasheet

Interface - Controllers


The CS8900A is a low-cost Ethernet LAN Controller optimized for Industry Standard Architecture (ISA) Personal Computers. Its highly-integrated design eliminates the need for costly external components required by other Ethernet controllers. The CS8900A includes on-chip RAM, 10BASE-T transmit and receive filters,and a direct ISA-Bus interface with 24 mA Drivers.In addition to high integration, the CS8900A offers a broad range of performance features and configurationoptions.Its unique PacketPage architecture automatically adapts to changing network traffic patterns and available system resources. The result is increased system efficiency.The CS8900A is available in a 100-pin TQFP packageideally suited for small form-factor, cost-sensitive Ethernet applications. With the CS8900A, system engineers can design a complete Ethernet circuit that occupies less than 1.5 square inches (10 sq. cm) of board space. CS8900A Features • Single-Chip IEEE 802.3 Ethernet Controller with Direct ISA-Bus Interface• Maximum Current Consumption = 55 mA (5V Supply)• 3 V Operation• Industrial Temperature Range• Comprehensive Suite of Software Drivers Available• Efficient PacketPage™ Architecture Operates in I/O and Memory Space, and as DMA Slave• Full Duplex Operation• On-Chip RAM Buffers Transmit and Receive Frames• 10BASE-T Port with Analog Filters, Provides: — Automatic Polarity Detection and Correction• AUI Port for 10BASE2, 10BASE5 and 10BASE-F• Programmable Transmit Features: — Automatic Re-transmission on Collision — Automatic Padding and CRC Generation• Programmable Receive Features: — Stream Transfer™ for Reduced CPU Overhead — Auto-Switch Between DMA and On-Chip Memory — Early Interrupts for Frame Pre-Processing — Automatic Rejection of Erroneous Packets• EEPROM Support for Jumperless Configuration• Boot PROM Support for Diskless Systems• Boundary Scan and Loopback Test• LED Drivers for Link Status and LAN Activity• Standby and Suspend Sleep Modes


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