Data accessing system with an access request pipeline and access method thereof

摘要

A PCI data accessing system with a read request pipeline and an application method thereof are provided. The PCI data accessing system has a PCI master device, a memory module, and a PCI control device. The PCI master device issues a first read request, and the PCI control device converts the first read request to a second read request divided into a first part and a second part. Each part of the second request requests one line data, i.e. 64 bits data. The memory module stores data requested by the PCI master device. Moreover, there is no latency time between data for the first part and the second part returned from the memory module.