Apparatus and method for matching data rates to transfer data between two asynchronous devices

摘要

A method and apparatus for transferring data between two relatively asynchronous devices and yet matching the maximum data rate of each. Both an asynchronous FIFO and a synchronous FIFO are used to match the data rate of a high speed asynchronous device, such as a SCSI/SCSI2 controller, to a high speed synchronous device, such as a DMA controller. A high speed synchronizer controls both FIFOs such that the asynchronous and the synchronous devices can each run at its maximum data transfer rate during operation.