引言:FIO是Zilog公司设计生产的系列芯片之一,该芯片具有高速的DMA传输功能和丰富的中断支援系统,此外,还有一定的可扩充的缓冲能力(本缓冲区具有共享存贮器之特点),是设计多机实时系统的很理想的接口片。FIO虽然功能很强,并具有其它芯片与之无比的许多优点,但就有效地发挥出 Introduction: FIO is one of a series of chips designed and manufactured by Zilog. The chip has high-speed DMA transfer function and rich interrupt support system. In addition, there is a certain amount of scalable buffer capacity (this buffer has shared memory Features), is to design a multi-machine real-time system of the ideal interface. Although FIO is very powerful and has many advantages over other chips, it is effective