Apple inc. (20240295976). Memory Calibration and Margin Check simplified abstract
Contents
Memory Calibration and Margin Check
Organization Name
Inventor(s)
Robert E. Jeter of Santa Clara CA (US)
Jingkui Zheng of Santa Clara CA (US)
Ritesh J. Shah of Sunnyvale CA (US)
Veera Chockalingam of Santa Clara CA (US)
Naveen Kumar Korada of Round Rock TX (US)
Memory Calibration and Margin Check - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240295976 titled 'Memory Calibration and Margin Check
The abstract of the patent application describes a memory calibration method with a margin check. The memory subsystem includes a memory and a memory controller that performs horizontal memory calibrations during initialization for different performance states. Information about the differences between calibration results for pairs of performance states is stored, and when transitioning between performance states, memory parameters are set based on these differences without the need for a full calibration.
- Memory calibration with margin check
- Horizontal memory calibrations during initialization for different performance states
- Storage of information about differences between calibration results for performance states
- Setting memory parameters based on stored differences when transitioning between performance states
- Elimination of the need for full calibration when switching performance states
Potential Applications: - Computer memory systems - Embedded systems - Mobile devices
Problems Solved: - Efficient memory calibration - Reduced initialization time - Improved memory performance
Benefits: - Faster system initialization - Optimal memory performance - Reduced power consumption
Commercial Applications: Title: "Efficient Memory Calibration Technology for Improved Performance" This technology can be applied in various industries such as computer hardware manufacturing, mobile device production, and embedded system development. It can lead to faster and more efficient memory systems, enhancing overall device performance and user experience.
Questions about Memory Calibration with Margin Check: 1. How does this memory calibration method improve system performance? This method optimizes memory parameters based on stored calibration differences, leading to enhanced memory performance without the need for full recalibration. 2. What are the potential drawbacks of using this memory calibration technique? While this method improves efficiency and reduces initialization time, there may be limitations in extreme performance state transitions that require additional fine-tuning.
Original Abstract Submitted
memory calibration with a margin check is disclosed. a memory subsystem includes a memory and a memory controller coupled to the memory. the memory controller includes a calibration circuit configured to perform, during an initialization process, horizontal memory calibrations for ones of a plurality of performance states and to determine and store, in a storage circuit, information indicative of a set of differences between calibration results for pairs of the plurality of performance states. the memory controller is further configured to, subsequent to the initialization process and in response to a change from a first one of the plurality of performance states to a second one of the plurality of performance states set initial memory parameters for the second performance state based on the set of differences. thereafter, operation begins in the second performance state without performing an initial horizontal calibration.
