A semiconductor integrated circuit device capable of high-speed rewriting of image data and an image data processing system using the semiconductor integrated circuit device

摘要

Two frame buffer memories are used.;The depth coordinates are stored in the data bank memory of the first frame buffer memory. The comparison unit compares the depth coordinates of the currently displayed image data with the depth coordinates newly input, thereby outputting a comparison result signal from the comparison result signal output terminal.;In the second frame buffer memory, the color data is stored in the data bank memory, and the comparison result signal sent from the first frame buffer memory is input via the comparison result signal input terminal.;The image processing unit performs blending processing on the color data in response to the comparison result signal, and rewrites the color data.