关键词: 硬件编程语言, 逻辑芯片, 硬盘, ATA

Abstract: The main communication interface of hard disk is IDE. The design for IDE interface focuses on two methods: one is to adopt the south bridge IC that can supply the IDE interface for data communication; the other is to adopt the processor with IDE interface. In this paper, an IDE interface is realized without using the above two methods. A logic IC is used to present the signals that are necessary for IDE communication, the program in VHDL (Very High Speed Integrated Circuit Hardware Description Language) language is for the timing of IDE communication. A simulation result is also presented, and this result proves that the design in this paper complies with the ATA standard. By using the method in this paper, any processor that supports 16bit bus can support IDE communication. This is a very new method. It gives a hint to system design with IDE interface.This design based on ATA standard can accommodate normal hard disk. By adopting the existing hardware, the system does not need additional cost, and its stability has been proved in practice.

Key words: VHDL, Verilog, EPLD, Hard Disk, ATA