Programmable logic cell and array with bus repeaters

Details Programmable logic cell and array with bus repeaters Programmable logic cell and array with bus repeaters

1992-08-25

1993-06-08

Hudspeth, David R.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3074651, 307481, H03K 19177

Patent

active

052182401

ABSTRACT:
A programmable logic array comprising cells and a bus network in which the cells are arranged in a two-dimensional matrix of rows and columns and are interconnected by the bus network. The cells are also interconnected by a two-dimensional array of direct connections between a cell and its four nearest neighbors, one to its left (or to the West), one to its right (or to the East), one above it (or to the North) and one below it (or to the South). Each cell comprises eight inputs, eight outputs, means for multiplexing the eight inputs onto two leads and logic means that operate in response to the signals on the two leads to produce output signals which are applied to the eight outputs. The bus network comprises a local, a turning and an express bus for each row and column of the array and repeater means for partitioning said buses of a given row or column so as to form bus segments. The bus network provides for transfer of data to the cells of the array without using the cells as individual wires.

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patent: 4918641 (1990-04-01), Tigour et al.
patent: 5073729 (1991-12-01), Greene et al.

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