Refreshing Dynamic Memory

摘要

A method of refreshing dynamic memory includes associating, for each refreshable memory element of a dynamic random access memory device, an indicator with the refreshable memory element. The method also includes detecting a predetermined data value being written to a memory location associated with a first refreshable memory element, and setting the indicator associated with the first refreshable memory element to a first value. The method further includes refreshing only the refreshable memory elements of the dynamic random access memory device whose associated indicators have values different from the first value, wherein refreshing does not comprise refreshing the first refreshable memory element.

主权项

1. A method of refreshing dynamic memory, comprising:
associating, for each refreshable portion of multiple refreshable portions of a first memory device, an indicator with the respective refreshable portion; determining that a first refreshable portion of the multiple refreshable portions is populated with a written predetermined data value; in response to determining that the first refreshable portion is populated with the written predetermined data value, setting the indicator associated with the first refreshable portion to a first value; and determining to bypass performing refresh operations on one or more refreshable portions, including the first refreshable portion, that are associated with indicators having the first value.