Patent ID: 6718400
Filing Date: 2004-04-06
Classification: G06F

Abstract:
A PCI data accessing system with a read request pipeline, comprising:a PCI master device, issuing a first read request; a memory module, storing data requested by the PCI master device; and a PCI control device, converting the first read request to a second read request, and storing the first and second read requests, the PCI control device comprising a read request buffer and a data buffer, wherein, data requested by the PCI master device are retrieved from the memory module, and the retrieved data are stored in the PCI control device before transferred to the PCI master device, and wherein, the read request buffer stores the second read request, and the second read request is transmitted by the PCI control device with the read request pipeline, and the data buffer includes a plurality of data fields, wherein one of the data fields is designated to the PCI master device when the first read request is issued, and data are stored in the designated data field when sent back from the memory module.