SDRAM Initialization Setting Mode and Register Configuration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional SDRAM controllers face challenges in verifying and correcting defects, flaws, or errors in initialization settings or sequences, due to a lack of operational flexibility in the SDRAM architecture.
Innovation Solution
A circuit and method that include at least one register and a controller circuit electrically coupled to the SDRAM, allowing the SDRAM to switch to an initialization setting mode, where the register values determine the initialization settings for the SDRAM.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional SDRAM controller is developed according to fixed instructions and operation sequence, then manufacturing process is simplified, but flexibility for verification and correction of initialization settings is lost
Solution Approach 1:
The patent introduces a dynamic initialization setting mode that allows the SDRAM controller to switch between fixed instruction execution and flexible register-based configuration. This enables verification and correction of initialization settings while maintaining the simplicity of conventional manufacturing processes.
Solution Approach 2:
The patent changes the operational parameters of the SDRAM controller by introducing an initialization setting mode where register values can be modified. This allows flexibility in verification and correction without altering the fundamental manufacturing process, thus resolving the contradiction between manufacturing simplicity and operational flexibility.
2Device complexity
If SDRAM controller uses fixed initialization sequence, then device complexity is reduced, but ability to verify and correct defects is impaired
Solution Approach 1:
The patent segments the initialization process into distinct modes: a normal operation mode with fixed sequence for simplicity, and an initialization setting mode with configurable registers for verification and correction. This segmentation allows both low complexity and high reliability to coexist.
Solution Approach 2:
The patent introduces an intermediary initialization setting mode that acts as a bridge between the simple fixed sequence and the need for verification. This intermediary mode allows defects to be detected and corrected without requiring complete redesign of the initialization sequence, thus maintaining simplicity while improving reliability.
3Ease of operation
If SDRAM architecture lacks operational flexibility, then manufacturing and operation become simpler, but defect verification and correction become difficult
Solution Approach 1:
The patent makes the SDRAM controller multi-functional by enabling it to operate in both normal mode (for simple operation) and initialization setting mode (for defect verification and correction). This universality allows the same device to provide both operational simplicity and defect detection capability without requiring separate systems.
Data Source
AI summary
The present disclosure provides a circuit and a method thereof for setting an SDRAM. The circuit includes at least one register and a controller circuit. The controller circuit is configured to: control the SDRAM to switch to an initialization setting mode, wherein the initialization setting mode is utilized for initialing the SDRAM; set value of the at least one register under the initialization setting mode; and set the SDRAM according to the value of the at least one register.