CRD8900A-1开发板套件编程器的评估演示板及套件规格书PDF中文资料

CRD8900A-1属于开发板套件编程器的评估演示板及套件。由凌云逻辑制造生产的CRD8900A-1评估和演示板及套件该系列产品提供了一种方便的方法，在经过验证的实施环境中评估某些重点器件的性能或特性。评估方法通常有完善的文档说明，并且视乎具体情况由评估软件提供支持。产品通常由印刷电路板组成，板上已装有重点器件以及必要或有用的支持元器件，另外也可能包括其他组件，例如电缆或电源。对于数量特别多或类别独特的器件类别(如 ADC、DAC 和开关模式电源)，评估平台可组合为一个单独的产品系列。

DESCRIPTION

The CS8900A is a low-cost Ethernet LAN Controller optimized for the Industry Standard Architecture (ISA) bus and general purpose microcontroller busses. 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.

FEATURES

Single-Chip IEEE 802.3 Ethernet Controller with Direct ISA-Bus Interface

Maximum Current Consumption = 55 mA (5V Supply)

3V or 5V Operation

Industrial Temperature Range

Comprehensive Suite ofSoftware 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