CRD8900A-1開發(fā)板套件編程器的評估演示板及套件規(guī)格書PDF中文資料

CRD8900A-1屬于開發(fā)板套件編程器的評估演示板及套件。由凌云邏輯制造生產(chǎn)的CRD8900A-1評估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過驗證的實施環(huán)境中評估某些重點器件的性能或特性。評估方法通常有完善的文檔說明，并且視乎具體情況由評估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對于數(shù)量特別多或類別獨特的器件類別(如 ADC、DAC 和開關(guān)模式電源)，評估平臺可組合為一個單獨的產(chǎn)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