Programmable input/output cell with bidirectional and shift register capabilities
US6674303B1 · kind B1 · utility
25Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Jan 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/17744
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An input/output (I/O) circuit or cell associated with a pin of a programmable logic circuit allows the pin to be configured as for bidirectional input and output operations, without requiring a second one-bit register to be configured from the configurable logic elements of the programmable logic circuit. The I/O cell can be used in parallel-to-serial, serial-to-parallel and shift register operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.