Mixed memory type hybrid cache

摘要

A hybrid cache includes a static random access memory (SRAM) portion and a resistive random access memory portion. Cache lines of the hybrid cache are configured to include both SRAM macros and resistive random access memory macros. The hybrid cache is configured so that the SRAM macros are accessed before the resistive random memory macros in each cache access cycle. While SRAM macros are accessed, the slower resistive random access memory reach a data access ready state.

主权项

1. A hybrid cache apparatus, comprising:
a first type of memory; a second type of memory; a first memory bank including the first type of memory and the second type of memory; and a first cache line including a first memory location in the first type of memory and a second memory location in the second type of memory within the first memory bank, the first cache line configured for accessing the first memory location before accessing the second memory location within the first memory bank during a cache accessing operation.