Application specific field programmable gate array
Abstract
Abstract An application specific field programmable gate array ("ASFPGA") includes at least two fixed functional units in a single IC chip. Depending upon a specific application for the ASFPGA, the fixed functional units may include one or more bus interfaces, event timers, an interrupt controller, a Direct Memory Access ("DMA") controller, system timers, a real-time clock, a Random Access Memory ("RAM"), a clock synthesizer, a RAM Digital-to-Analog Converter ("DAC"), a display interface, a register file, a compressed image encoder/decoder ("CODEC"), or similar functional units. The ASFPGA also includes a general purpose field programmable gate array ("FPGA"). The FPGA is configurable to effect a specific digital logic circuit interconnection between fixed functional units. After the FPGA has been configured, the fixed functional units together with the FPGA perform all the functions specified for a particular ASIC design.
Inventors
- 👤 Web Chang
Bibliographic Details
Claims Analysis
Total Claims: 13References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-10 | 2001-05-12 | 2001-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-10 | 2005-05-12 | 2005-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-10 | 2009-05-12 | 2009-11-11 | $7700.00 | Window Closed / Lapsed |