Circular product term allocations scheme for a programmable device
US6201407A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1997 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Oct 7, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circular product term allocator configured to provide connections for product term signals to macrocells of a programmable logic device is provided. The circular product term allocator may provide such connections through a logic OR function. Alternatively, a homogeneous product term allocator may be configured to provide connections for product term signals to macrocells of a programmable logic device. The homogeneous product term allocator may be configured to provide each of the product term signals to an equal number of macrocells. In yet another embodiment, a programmable logic device includes a plurality of macrocells and a product term allocator configured to provide an equal number of product term signals to each of the macrocells. In yet a further embodiment, a method of distributing product terms in a programmable logic device is accomplished by configuring a product term allocator to provide an equal number of product terms, but fewer than all of the product terms, to each of the macrocells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.