FAST WRITE MECHANISM FOR EMULATED ELECTRICALLY ERASABLE (EEE) SYSTEM

摘要

A method of operating an emulated electrically erasable (EEE) memory system includes entering a quick write mode for a predetermined amount of time, upon detection of imminent power loss of the EEE memory system. A first write request is received immediately subsequent to entering the quick write mode, where the first write request includes a first address of an emulated memory of the EEE memory system and associated first data to be written at the first address. A first new record is created in non-volatile memory of the EEE memory system during the quick write mode, where the first new record includes the first address, the associated first data, and a blank record status identifier. The first new record is updated to have a quick record status ID, in response to a determination that record data of the first new record passes verification.

主权项

1. A processing system comprising:
a processor; an emulated electrically erasable (EEE) memory system coupled to communicate with the processor, wherein the EEE memory system includes:
a memory controller;an emulated portion of memory coupled to the memory controller; anda non-volatile portion of memory coupled to the memory controller, wherein the memory controller is configured to:
upon detection of imminent power loss in the EEE memory system, enter a quick write mode for a predetermined amount of time,receive a first write request from the processor immediately subsequent to entry of the quick write mode,
wherein the first write request comprises a first address of the emulated portion of memory and associated first data to be written at the first address,create a first new record in the non-volatile portion of memory during the quick write mode,
wherein record data written to the first new record comprises the first address, the associated first data, and a blank record status identifier (ID), andwherein the blank record status ID is one of a plurality of non-qualified record status identifiers (IDs), andin response to a determination that the record data written to the first new record passes verification, update the first new record to comprise a quick record status ID,
wherein the quick record status ID is another one of the plurality of non-qualified record status IDs.