The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2023
Filed:
Mar. 31, 2021
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Kevin M. Brandl, Austin, TX (US);
Indrani Paul, Austin, TX (US);
Jean J. Chittilappilly, Maynard, MA (US);
Abhishek Kumar Verma, Round Rock, TX (US);
James R. Magro, Lakeway, TX (US);
Kavyashree Pilar, Boxborough, MA (US);
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Abstract
A memory controller includes a command queue and an arbiter operating in a first voltage domain, and a physical layer interface (PHY) operating in a second voltage domain. The memory controller includes isolation cells operable to isolate the PHY from the first voltage domain. A local power state controller, in response to a first power state command, provides configuration and state data for storage in an on-chip RAM memory, causes the memory controller to enter a powered-down state, and maintains the PHY in a low-power state in which the second voltage domain is powered while the memory controller is in the powered-down state.