Patent ID: 6708253
Filing Date: 2004-03-16
Classification: G06F

Abstract:
A processor memory system which includes:a processor component (2) provided with a processor (6) and at least a first integrated RAM memory (9), at least one second external memory (3) which is coupled to the processor component (2) via an interface (5), a programmable memory management component (7) which is integrated in the processor component (2) and checks, in the case of a data address requested by the processor (6), whether this data address is stored in the first RAM memory (9) which serves as a fast memory and in which data from the external memory (3) has been loaded in advance, wherein the memory management component (7) indicates a first RAM memory address at which the data associated with the data address is stored if the data is present in the first RAM memory, the data then being read from the first RAM memory (9), wherein, if the data address is not present in the first RAM memory (9), the memory management component (7) outputs an interrupt instruction to the processor (6) and a direct memory access (DMA)unit (8) subsequently initiates the loading of the searched data address from the external memory (3) into the first RAM memory (9) and wherein the processor component (2) can perform other activities during the loading by the DMA unit (8).