Invention Grant
- Patent Title: Protocol for refresh between a memory controller and a memory device
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Application No.: US16692069Application Date: 2019-11-22
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Publication No.: US10892001B2Publication Date: 2021-01-12
- Inventor: Frederick A. Ware , Brent Haukness
- Applicant: Rambus Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus Inc.
- Current Assignee: Rambus Inc.
- Current Assignee Address: US CA Sunnyvale
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G11C11/406 ; G06F13/16

Abstract:
The present embodiments provide a system that supports self-refreshing operations in a memory device. During operation, the system transitions the memory device from an auto-refresh state, wherein a memory controller controls refreshing operations for the memory device, to a self-refresh state, wherein the memory device controls the refreshing operations. While the memory device is in the self-refresh state, the system sends progress information for the refreshing operations from the memory device to the memory controller. Next, upon returning from the self-refresh state to the auto-refresh state, the system uses the progress information received from the memory device to control the sequencing of subsequent operations by the memory controller.
Information query