Patent
1993-11-29
1998-03-17
Harvey, Jack B.
395306, 395309, 395376, 395827, 395840, G06F 1714, G06F 1900
Patent
active
057297061
ABSTRACT:
A microcomputer includes a data processor in a bus transfer circuit of the microcomputer and, therefore, simple data processing is enabled when data are transferred to a bus. Further, a microcomputer includes a bit shifter that shifts the data to an upper bit direction or to a lower bit direction while transferring the data to a bus from a memory and, therefore, bit shifting processing, which is a light load, is enabled while transferring data from the memory to a bus. Further, a microcomputer includes a bit processor that performs an operation on an arbitrary bit of data while transferring the data to a bus from the memory and, therefore, bit processing, which is a light load, is enabled while transferring data to a bus from the memory. Furthermore, a microcomputer includes a bit reverser that inverts the positions of bits in a bit sequence and, therefore, bit reversing processing, which is a light load, is enabled.
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Harvey Jack B.
Mitsubishi Denki & Kabushiki Kaisha
Seto Jeffrey K.
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