Electronic digital logic circuitry – Multifunctional or programmable – Array
Patent
1993-09-01
1995-04-04
LaRoche, Eugene R.
Electronic digital logic circuitry
Multifunctional or programmable
Array
36518908, 326 39, G06F 738, H01L 2500
Patent
active
054040558
ABSTRACT:
The disclosed structure and method route an input signal received at an input/output pin through multiple input/output cells to a routing resource. In one embodiment, each input/output cell can be programmed to provide either a combinatorial input signal or a registered input signal. Increased flexibility is achieved by routing the registered input signal or the combinatorial input signal of each cell to a routing resource via one or more I/O cells.
REFERENCES:
patent: 4855954 (1989-08-01), Turner
patent: 4896296 (1990-01-01), Turner
patent: 5191243 (1993-03-01), Shen
patent: 5220215 (1993-06-01), Douglas
patent: 5268598 (1993-12-01), Pedersen
Shankar Kapil
Tsui Cyrus Y.
LaRoche Eugene R.
Lattice Semiconductor Corporation
Mai Son
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