Work station including a direct memory access controller and interfacing means to a data channel

摘要

A work station having a local bus connected to a CPU, and an interface chip connected between an external bus and the local bus, The buses have different operating frequencies, The interface chip includes a DMA unit and interfacing unit connected to an internal bus, The DMA unit controls data transfer between the external and local buses, The first interfacing unit includes a synchronizer for compensating for the different operating frequencies.