Back to results
US 8,711,651 B2Granted
System and method for managing self-refresh in a multi-rank memory
AssigneeMicron Technology, Inc.
InventorTodd D. Farrell
Life of this patent
Estimating the term…
Abstract
Multi-rank memories and methods for self-refreshing multi-rank memories are disclosed. One such multi-rank memory includes a plurality of ranks of memory and self-refresh logic coupled to the plurality of ranks of memory. The self-refresh logic is configured to refresh a first rank of memory in a self-refresh state in response to refreshing a second rank of memory not in a self-refresh state in response to receiving a non-self-refresh refresh command for the second rank of memory.
Claims22
A method comprising:
- preventing a rank of memory of a multi-rank memory from responding to commands other than a self-refresh exit command;
- and
- refreshing the rank of memory and at least one other rank of memory of the multi-rank memory based on a refresh command other than a self-refresh command.
A memory comprising:
- a first rank of memory;
- a second rank of memory;
- and
- self-refresh logic coupled to the first rank of memory and to the second rank of memory, the self-refresh logic configured to, while the first rank of memory is in a self-refresh mode, refresh the first rank of memory and the second rank of memory in response to receiving a non-self-refresh refresh command designating the second rank of memory.
1 more element
A memory comprising:
- a plurality of ranks of memory comprising a first rank of memory and a second rank of memory;
- an input/output (I/O) buffer coupled to the plurality of ranks of memory, the I/O buffer comprising self-refresh logic, the self-refresh logic configured to, while the first rank of memory is in a self-refresh mode, enable refreshing of both the first rank of memory and the second rank of memory responsive to a refresh command designating the second rank of memory.
Dependencies are inferred from the claim text.