Multi-buffered configurable logic block output lines in a field

Details Multi-buffered configurable logic block output lines in a field Multi-buffered configurable logic block output lines in a field

1995-10-16

1998-09-29

Westin, Edward P.

Electronic digital logic circuitry

Multifunctional or programmable

Array

326 39, H03K 738, H03K 19177

Patent

active

058150048

ABSTRACT:
A field programmable gate array having independently buffered output lines of a CLB for handling critical path situations. One of the CLB's output ports is coupled to a vertical interconnect line and a horizontal interconnect line. Two separate buffers are used to drive these lines. One buffer drives the horizontal interconnect line, while the other drives the vertical interconnect line. One of these lines is used to conduct the output signal that corresponds to the critical path. The other line is used to conduct the output signal onto other branches that are not part of the critical path. Hence, by using a separate buffer to drive the critical path, it is not loaded with the circuits associated with the non-critical branches.

REFERENCES:
patent: 5089973 (1992-02-01), Furtek
patent: 5111079 (1992-05-01), Steele
patent: 5319255 (1994-06-01), Garverick et al.
patent: 5469003 (1995-11-01), Kean
patent: 5498975 (1996-03-01), Cliff et al.
patent: 5517132 (1996-05-01), Ohara
patent: 5600263 (1997-02-01), Trimberger et al.
Babb, Jonathan; Tessier, Russell; and Agarwal, Anant, "Virtual Wires: Overcoming Pin Limitations in FPGA-based Logic Emulators", IEEE Workshop on FPGAs for Custom Computing Machines, FCCM 93, Apr. 5-7, 1993, pp. 1-15.

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