Routing in programmable logic devices using shared distributed p

Details Routing in programmable logic devices using shared distributed p Routing in programmable logic devices using shared distributed p

1996-09-23

1999-02-16

Tokar, Michael J.

Electronic digital logic circuitry

Multifunctional or programmable

Array

326 39, H03K 19177, H03K 738

Patent

active

058724630

ABSTRACT:
The output signals of the logic regions in a programmable logic integrated circuit device are programmably connectable to output bus conductors. Each such output signal can be applied to any of several of these conductors, and each conductor can receive any of several output signals. Each output bus conductor is connectable to one or more output drivers (e.g., through a programmable connector it shares with another output bus conductor). The output drivers can drive more general interconnection resources of the device. This device architecture increases logic region output signal routing flexibility and/or allows the number of output drivers to be decreased (i.e., by making more efficient use of the output drivers that are provided).

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