Circuit for interfacing a digital signal processor to a serial interface controller
US4991170A · kind A · utility
43Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Jul 17, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/385
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An interface circuit which connects a Digital-Signal-Processor (DSP) to a serial controller. The interface circuit includes a bi-directional multiplexer which converts the separate address and data busses of the DSP to the multiplexed data and address bus of the serial controller. A timing generator is included for keeping track of the number of clock cycles in the present access. A decoder connected to the timing generator decodes the number of clock cycles and generates the appropriate control signals to both the serial controller and the DSP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.