ECC Check Code Offloading for Smaller Receiving Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data error correction systems in integrated circuits require a large number of circuit elements and occupy significant layout area, which poses a challenge in reducing the requirements on the data receiving terminal without compromising error correction accuracy.
Innovation Solution
A data error correction circuit and method that generates a second check code directly in the memory, which includes a full check value, allowing the data receiving terminal to perform error correction without the need for additional circuit elements or layout area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a link ECC is implemented in the data receiving terminal to perform error correction on received data, then error correction accuracy is improved, but the number of circuit elements and layout area increase
Solution Approach 1:
The patent extracts the second check code generation function from the data receiving terminal and relocates it to the memory device. Specifically, the memory device generates a second check code based on the first check code and transmitted data, then transmits both the data and second check code to the receiving terminal. This extraction removes the complex generation circuitry from the receiving terminal while maintaining error correction capabilities.
Solution Approach 2:
The patent applies preliminary action by having the memory device generate the second check code in advance before data transmission. The second check code is prepared and transmitted along with the data, so that the data receiving terminal can directly use it for error correction without needing to perform complex real-time generation operations.
2Reliability
If a link ECC is implemented in the data receiving terminal to perform error correction on received data, then error correction accuracy is improved, but the layout area increases
Solution Approach 1:
The patent extracts the second check code generation function from the data receiving terminal and relocates it to the memory device. Specifically, the memory device generates a second check code based on the first check code and transmitted data, then transmits both the data and second check code to the receiving terminal. This extraction removes the complex generation circuitry from the receiving terminal while maintaining error correction capabilities.
3Measurement precision
If the full check value is generated according to each bit of the data and each bit of the first check code in the data receiving terminal, then error correction accuracy is improved, but the functional requirements and circuit complexity increase
Solution Approach 1:
The patent extracts the second check code generation function from the data receiving terminal and relocates it to the memory device. Specifically, the memory device generates a second check code based on the first check code and transmitted data, then transmits both the data and second check code to the receiving terminal. This extraction removes the complex generation circuitry from the receiving terminal while maintaining error correction capabilities.
Solution Approach 2:
The patent applies preliminary action by having the memory device generate the second check code in advance before data transmission. The second check code is prepared and transmitted along with the data, so that the data receiving terminal can directly use it for error correction without needing to perform complex real-time generation operations.
Data Source
AI summary
A data error correction circuit includes: a data error correction circuit, configured to receive first data and a first check code corresponding to the first data, perform error correction on the first data according to the first check code to generate second data, and output the second data; and a check code generation circuit, configured to receive the first data and the first check code, generate a second check code according to the first data and the first check code, and output the second check code.