System control with multiplex-graphics bus architecture e.g. for external graphics processor, includes internal graphics processor connected to an expansion of the external graphics

摘要

Systems control with multiplex-graphics bus architecture, are designed to enhance the functional scope of an integrated graphics sub-system with graphics processing by means of an AGP (advanced graphics port) bus; an internal graphics processor is used and is connected via an internal graphics bus with an expansion of the external graphics bus positioned within the systems control (30), this expansion being connected with a snooper for searching through the requirements transmitted between the external graphics processor, the internal graphics processor and further circuit arrangements of the control system.