LAN91C93数据手册集成电路（IC）的控制器规格书PDF

描述 Description

A unique architecture allows the LAN91C93I to combine high performance, flexibility, high integration and simple software interface. The LAN91C93I incorporates the LAN91C92 functionality for local bus environments. The LAN91C93I consists of the same logical I/O register structure in local bus modes. The MMU (Memory Management Unit) architecture used by the LAN91C93I combines the simplicity and low overhead of fixed areas with the flexibility of linked lists providing improved performance over other methods. Packet reception and transmission are determined by memory availability. All other resources are always available if memory is available. To complement this flexible architecture, bus interface functions are incorporated in the LAN91C93I, as well as a 6144 byte packet RAM - and serial EEPROM-based setup. The user can select or modify configuration choices. The LAN91C93I integrates most of the 802.3 functionality, incorporating the MAC layer protocol, the physical layer encoding and decoding functions with the ability to handle the AUI interface. For twisted pair networks, LAN91C93I integrates the twisted pair transceiver as well as the link integrity test functions. 

特性 Features

• Non-PCI Single-Chip Ethernet Controller
• Fully Supports Full Duplex Switched Ethernet
• Supports Enhanced Transmit Queue
• 6K Bytes of On-Chip RAM
• Supports IEEE 802.3 (ANSI 8802-3) Ethernet
• Automatic Detection of TX/RX Polarity Reversal
• Simultasking Early Transmit and Early Receive
• Enhanced Early Transmit Function
• Receive Counter for Enhanced Early Receive
• Hardware Memory Management Unit
• Optional Configuration via Serial EEPROM
• Supports single 5V or 3.3V VCC Design
• Supports Mixed Voltage External PHY Designs
• Supports Industrial Temp -40°C to 85°C
• Low Power CMOS Design
• 100 Pin QFP and TQFP (1.0mm body Thickness)
• Direct Interface to local bus, with No Wait States
• 16 Bit Data and Control Paths

简介

LAN91C93属于集成电路（IC）的控制器。由制造生产的LAN91C93控制器该系列产品主要用于在采用不同通信协议和/或信令方法的端点之间提供信息连接。示例包括将 I2C 总线连接到 UART，将 USB 连接到 I2C、SPI、以太网或 UART、以太网 MAC 和 PHY 等的器件。此外，还包括用于通过为点对点通信设计的接口建立多路连接的器件，例如 USB 集线器控制器。