Electrical computers and digital processing systems: memory – Addressing combined with specific memory configuration or...
Patent
1997-03-26
1999-12-28
Cabeca, John W.
Electrical computers and digital processing systems: memory
Addressing combined with specific memory configuration or...
711217, 711220, 711214, G06F 1200
Patent
active
060094931
ABSTRACT:
A method and apparatus for controlling transfer of data in which a plurality of burst transfer operations starting from an arbitrary byte as a start address are performed consecutively without a high-speed adder provided in the conventional data transfer apparatus performing burst transfer. Data is transferred between memories by a plurality of consecutive burst transfer operations performed on data stored in consecutive addresses. Each of the burst transfer operations is performed on the data stored in a respective one of memory cell areas each of which corresponds to a unit of burst transfer. A first address representing an address of one of the memory cell areas storing data to be transferred is calculated. The first address is a part of a start address of a second or later burst transfer operation. A second address representing an address of one of memory cells provided in the one of the memory cell areas is calculated separately. The data transfer operation is started from the one of the memory cells. The second address is a part of the start address of the second or later burst transfer operation.
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Cabeca John W.
Fujitsu Limited
Tzeng Fred F.
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