High fan-out signal routing systems and methods
US7576563B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2007 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Feb 6, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/1774
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed herein to provide high fan-out signal routing. For example, in accordance with an embodiment of the present invention, a programmable logic device includes a plurality of logic blocks; an interconnect structure adapted to route signals among the logic blocks; and a secondary routing network adapted to route signals among the logic blocks. The secondary routing network may include a plurality of horizontal splines adapted to route signals within the programmable logic device; a plurality of vertical spline taps adapted to route signals within the programmable logic device; a plurality of common interface blocks adapted to route signals between the horizontal splines and the vertical spline taps; and a plurality of horizontal secondary branches adapted to route signals from the vertical spline taps to the logic blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.