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US 4,034,356 AGranted
Reconfigurable logic array
AssigneeIBM Corporation
InventorsFrank E. Howley, John W. Jones, Joseph C. Logue
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Abstract
This specification describes a set of arrays for performing logic function in various subsets of the original set. The array structure is characterized by a plurality of arrays joined together with a bidirectional bussing system. This bussing system comprises addressing lines of the arrays joined together by switching circuitry used to regroup the set into subsets as necessary to perform the logic functions.
Claims2
A reconfigurable logic array comprising:
- a plurality of programmable logic arrays made up of latches and sets of AND and OR arrays having common addressing lines that extend through all sets of arrays with inputs supplied to the AND arrays on lines transverse to said common addressing lines and the latches coupled to the outputs of the OR arrays on lines transverse to said common addressing lines;
- gating means along the common address lines between the sets for controlling the passage of signals between sets;
- latching means on said addressing lines between the sets for storing bits of data transmitted along said addressing line;
- and
- clocking means for opening and closing said gating means at different time periods whereby the sets of AND and OR arrays can be connected and disconnected as necessary to perform logic functions.
2 more elements
Dependencies are inferred from the claim text.