Memory Queued Task Execution via Single Command
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Solution Overview
Problem
Existing data transfer methods between a host and memory require numerous control signals, leading to inefficient power consumption and signal line usage, especially when continuously providing ready status information for queued memory access requests.
Innovation Solution
A system where the host provides a single execution command to the memory to execute multiple queued memory access requests, reducing the need for continuous status updates and optimizing the use of control signals, with a queue status register maintaining readiness indications for each request.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If continuous ready status information is provided from memory to host, then the host can execute memory access requests efficiently, but power consumption and signal line usage increase
Solution Approach 1:
The patent implements periodic status updates by having the memory device send ready status information to the host only when the execution command is completed or when status changes occur, rather than continuous updates. This periodic transmission maintains data transfer efficiency while significantly reducing power consumption and signal line usage during idle periods
2Reliability
If multiple control signals are provided from host to memory, then memory operations can be precisely controlled, but the interface complexity increases
Solution Approach 1:
The patent merges multiple control signals into a single execution command that contains multiple command codes. The host sends one execution command with embedded command codes for multiple memory operations, reducing the number of separate control signals and interface complexity while maintaining precise control through the coded instructions
3Productivity
If multiple memory access requests are queued, then data transfer throughput increases, but the number of execution commands and signal transmissions increases
Solution Approach 1:
The patent combines multiple memory access requests into a single execution command by embedding multiple command codes within one command structure. The memory device queues and executes these multiple operations based on the embedded command codes, increasing throughput while reducing the quantity of separate command transmissions
Data Source
AI summary
Methods and apparatuses are disclosed for executing a plurality of queued tasks in a memory. One example apparatus includes a memory configured to be coupled to a host. The memory is also configured to receive a plurality of memory access requests, a status request, and an execution command from the host, and to execute one or more of the plurality of memory access requests responsive to the execution command from the host. The execution command includes a plurality of respective indications that correspond to each respective memory access request of the plurality of memory access requests and that indicate whether the host is requesting the memory to execute each respective memory access request.