Slave Register Write Verification Using Feedback Data
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Solution Overview
Problem
Traditional circuit designs lack a mechanism to verify whether slave device registers are set correctly, leading to potential operation errors.
Innovation Solution
A data transmission system and verification method that includes a master device outputting a write instruction to a slave device, where the slave device generates verification data based on the write operation, allowing the master device to verify the operation's correctness through parity operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional circuit design is used without verification mechanism, then device complexity is reduced, but reliability deteriorates due to inability to verify register settings
Solution Approach 1:
The slave device generates verification data based on the written data and address, then feeds back this verification data to the master device. The master device uses this feedback to verify whether the write operation was successful, thus resolving the reliability issue without requiring complex continuous monitoring mechanisms.
Solution Approach 2:
The verification data is generated as a copy or representation of the written data and address information. This copying approach allows verification without requiring the actual data to be stored or transmitted repeatedly, reducing the complexity overhead while maintaining verification capability.
2Reliability
If write operations are performed without verification, then productivity is improved, but reliability deteriorates due to unexpected operation errors
Solution Approach 1:
A feedback mechanism is introduced where the slave device returns verification data to the master device after write operations. This allows the master device to confirm successful writes without requiring repeated transmission attempts, thus maintaining productivity while improving reliability.
Solution Approach 2:
The verification data is generated preliminarily by the slave device immediately after the write operation completes. This preliminary verification action ensures that any potential errors are caught immediately, preventing unexpected operations without requiring post-operation retransmission or complex error handling procedures.
Data Source
AI summary
A data transmission system includes a master device and a slave device. The master device is configured to output a write instruction. The write instruction includes a control data. The slave device includes a data register coupled to the master device. In response to that the slave device receives the write instruction, the slave device is configured to perform a write operation to store the control data at an address in the data register according to the write instruction. The slave device is configured to generate a verification data corresponding to the write operation according to the control data and the address. The master device is configured to utilize the verification data to verify the write operation.