I/O and memory bus system for DFPS and units with two- or multi-dimensional programmable cell architectures
First Claim
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1. A method of controlling communication between a plurality of cells arranged in a multidimensional cell structure and at least one external cell, comprising:
- for write access to the at least one external cell;
transmitting data of the plurality of cells on lines of an internal bus interconnecting the plurality of cells and to write registers assigned to the lines; and
switching the write registers to an external bus in communication with the at least one external cell via opening of respective gates; and
for read access from the at least one external cell;
transmitting data of the at least one external cell to read registers assigned to the lines; and
switching the read registers to the lines of the internal bus via opening of the gates;
wherein only one gate is open at a time.
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Abstract
A general bus system is provided which combines a number of internal lines and leads them as a bundle to the terminals. The bus system control is predefined and does not require any influence by the programmer. Any number of memories, peripherals or other units can be connected to the bus system (for cascading).
133 Citations
4 Claims
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1. A method of controlling communication between a plurality of cells arranged in a multidimensional cell structure and at least one external cell, comprising:
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for write access to the at least one external cell; transmitting data of the plurality of cells on lines of an internal bus interconnecting the plurality of cells and to write registers assigned to the lines; and switching the write registers to an external bus in communication with the at least one external cell via opening of respective gates; and for read access from the at least one external cell; transmitting data of the at least one external cell to read registers assigned to the lines; and switching the read registers to the lines of the internal bus via opening of the gates; wherein only one gate is open at a time. - View Dependent Claims (2, 3, 4)
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Specification