Conditional memory calibration cancellation
US9396778B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2015 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Aug 7, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2207/2254
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for conditional cancellation of a calibration procedure is performed. In one embodiment, a memory controller is coupled to memory. The memory controller is configured to convey data and a data strobe signal to the memory. The memory controller may conduct calibrations of a delay of the data strobe signal to ensure sufficient setup and hold time for the data. After an initial calibration, and at each of a number of periodic intervals, the memory controller may determine whether one or more parameters is within a specified range. If one of the one or more parameters is not within its respective specified range, another calibration of the data strobe delay may be performed. However, if each of the one or more parameters is within its respective specified range, the calibration may be canceled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.