Patent ID: 6839063
Filing Date: 2005-01-04
Classification: G09G

Abstract:
1. A memory access method in a multimedia data-processing system comprising: at least one instruction processing unit, at least one display control unit, at least one input/output unit, and at least one unified memory comprising the areas accessed by said instruction processing unit and the areas accessed by said display control unit; wherein said memory access method is characterized in that an interface for connecting said unified memory and an LSI integrating at least said instruction processing unit and said display control unit formed on a single silicon substrate is provided separately from an interface intended to connect said LSI and said input/output unit; and wherein said memory access method is characterized in that the plurality of display areas of said unified memory is continuously accessed in batch form, and in that when the ratio between the frequency of the display output signals from said display control unit and the operating frequency of the interface of said unified memory is greater than a required parameter, a continuous batch access mode can be set.