Microprocessor, and graphics processing apparatus and method using the same

Abstract

A microprocessor for processing a large quantity of graphics data. The microprocessor independent of a CPU has two ports, and performs an instruction fetch and a data access or a memory access simultaneously to two memories mounted on separate buses. A graphics processing apparatus provided by the microprocessor transfers graphics data between a system memory and a frame memory at high speeds.

What is claimed is:  
     
         1 . A graphics processing system comprising: 
 a CPU;    a first memory which stores graphics data and a program to be executed by said CPU;    a second memory which stores graphics data; and    a processor having a first terminal for outputting an address for reading at least one graphics data stored in said first memory based on a first clock signal and a second terminal for outputting an address for writing graphics data to said second memory based on a second clock signal, said processor generates graphics data from said read graphics data, and said first and second clock signals are different from each other,    wherein said first memory is separate from said second memory.