Embedded storage chip mass production device and method based on SCSI and eMMC protocol conversion

Through the conversion of SCSI and eMMC protocols, the hardware directly responds to the CMD10 command, solving the problem of inefficient mass production of embedded memory chips in the existing technology, achieving an efficient and reliable mass production process, adapting to ordinary card reader hardware, improving device compatibility and resource utilization.

CN120406864AActive Publication Date: 2025-08-01ZHEJIANG WEIMING SEMICONDUCTOR CO LTD
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Patent Information

Application Number
CN202510914870.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-03
Publication Date
2025-08-01
Estimated Expiration
2045-07-03

AI Technical Summary

Technical Problem

When mass production of embedded memory chips, the prior art relies on frequent underlying interrupts to trigger the acquisition of device status, resulting in low efficiency and high resource occupancy, especially in high concurrent mass production tasks, which significantly affects performance.

Method used

The SCSI and eMMC protocol conversion is adopted to directly respond to CMD10 commands through hardware to reduce operating system intervention, and use SCSI commands to encapsulate eMMC private commands, combining non-standard CMD10 status query module and command verification module to ensure the reliability and compatibility of command transmission.

Benefits of technology

Improve mass production efficiency, reduce interrupt processing time, enhance device compatibility and reliability of command transmission, adapt to ordinary card reader hardware, and reduce resource occupancy.

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Abstract

The invention discloses an embedded storage chip mass production device and method based on SCSI and eMMC protocol conversion. The embedded storage chip mass production device comprises an SCSI-eMMC private command mapping module, a non-standard CMD10 state query module and a command verification module. The USB communication protocol layer of the SCSI-eMMC private command mapping module uses an SCSI standard, the CMD10 command response content of the non-standard CMD10 state query module is private defined mass production progress data, and the command verification module is used for realizing verification head generation, anti-code verification and hardware response mechanism. According to the method, the efficiency is optimized, the CMD10 is directly responded by hardware, frequent intervention of an operating system is not needed, and the interrupt processing time is shortened; the compatibility is good; an eMMC private command is packaged through an SCSI command to adapt to common card reader hardware; and the anti-code verification of the verification mechanism ensures that the command transmission is errorless.
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