VGA CONTROLLER USING ADDRESS TRANSLATION TO DRIVE A DUAL SCAN LCD PANEL AND METHOD THEREFOR

摘要

A VGA controller (30) using address translation logic (32) to drive a dual scan LCD panel (12) is disclosed. The address translation logic (32) converts the display data into an interleaved format in the display buffer (34), allowing the VGA controller (30) to simultaneously access the display data for both LCD inputs (20 and 22) without the need for a separate half-frame buffer memory (24). Elimination of this half-frame buffer memory (24) reduces system cost with no reduction in performance of the VGA controller (30).