Multi-Mode Register Read Write Command for Memory Latency
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Solution Overview
Problem
Current semiconductor memory systems face challenges in efficiently performing read and write operations on multiple mode registers due to the need for multiple commands, leading to latency and reduced performance.
Innovation Solution
The introduction of multi-mode-register read and write commands (MRR-ALL and MRW-ALL) allows for the simultaneous reading or writing of data to multiple mode registers using a single command, grouping mode registers to optimize data transfer during bursts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple separate read/write commands are used for each mode register, then individual register access is precise and controlled, but the system experiences increased latency and reduced performance
Solution Approach 1:
The patent combines multiple separate mode register read/write commands into a single multi-mode-register command that can access multiple registers simultaneously. This merging of operations eliminates the sequential execution delay inherent in individual command processing, thereby reducing overall latency and improving access speed without sacrificing the precision of individual register targeting.
Solution Approach 2:
The invention creates a universal command structure that can handle multiple mode registers through a single operation. This multi-functional command replaces the need for multiple specialized single-register commands, allowing the system to efficiently access any combination of mode registers while maintaining the same level of control and precision as individual commands.
2Ease of operation
If multiple commands are issued to handle multiple mode registers, then each operation can be precisely controlled, but the processing complexity and overhead increase
Solution Approach 1:
By merging multiple command processing operations into a single unified command handler, the system reduces the overhead associated with repeated command parsing, validation, and execution setup. The unified handler processes all mode register accesses in one operation, simplifying the control flow and reducing processing complexity while improving operational efficiency.
3Productivity
If the system operates at high speeds to meet market demand, then productivity increases, but signal quality degrades and processing errors increase
Solution Approach 1:
The patent merges multiple high-speed operations into a single coordinated command execution, which reduces the total number of signal transitions and processing cycles required. This consolidation maintains high productivity by completing multiple register accesses in one operation while reducing the cumulative signal degradation and error probability that would result from executing multiple separate high-speed commands.
Data Source
AI summary
Methods, apparatuses, and systems related to operations for executing mode register read and mode register write all commands. A memory device can execute a register read or a mode register write all command using a unit interval of one or more DQs. One or more command address pins can be designated to store groups of mode registers. The memory device can read or write mode register information associated with the group of mode registers through a pre-defined number of DQs, burst length, and die configuration.