Serial interface between DSP and analog front-end device
US5758073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Dec 2, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4291
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system to transfer a serial digital data protocol between a controlling processor such as digital signal processor and a plurality of analog front-end devices is described. The system has a serial clock unit to generate a serial clock reference signal, a serial data control unit to create the serial data protocol, a serial clock transmission medium, a serial data transmission medium, and an analog front-end control unit. The serial digital data protocol has a start bit time, an address time, a read/write bit time, a first high impedance time, a serial data word time, a second high impedance time, and a stop bit time. A serial data word may be transferred either from the controlling processor to the analog front-end device or from the analog front-end device to the controlling processor dependent on the state at the read write bit time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.