Micron Technology Incorporated

Di Hsien Ngu

Horia Cristian Simionescu

Prateek Sharma

Chung Kuang Chin

Raja V S Halaharivi

Sumangal Chakrabarty

A system includes host interface circuitry to interact with a host system and that includes an address translation circuit, which includes request staging queues to buffer the address translation requests, each includes a virtual address and received from a host interface circuit. Pending response queues buffer respective address translation requests that are waiting for an address translation from the host system while maintaining an order as received within the request stage queues. Reordering buffers reorder address translations, which are to be supplied to the host interface circuits, according to the order maintained within the pending response queues, each address translation includes a physical address mapped to the virtual address of a corresponding address translation request. A cache stores multiple of the address translations, associated with the address translation requests, for future access by the host interface circuits.

Caching host memory address translation data in a memory sub-system

Translated addresses of a memory device can be stored in a first LUT maintained by control circuitry. Untranslated addresses can be stored in a second LUT maintained by the control circuitry. In response to a translation request for a particular translated address of the memory device corresponding to a target untranslated address, an index of the second LUT associated with the target untranslated address can be determined, the index of the second LUT can be mapped to an index of the first LUT, and the particular translated address corresponding to the target untranslated address can be retrieved from the first LUT.

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Zhubei, Taiwan

Di Hsien Ngu