A1.7 Product revisions
This section indicates the first release and, in subsequent releases, describes the differences in functionality between product revisions.
- First release.
- Further development and optimization of the product, including updates to the L2 data RAM control inputs to allow multi-cycle hold timing constraints to ease timing closure.
- Includes Inter-Exception level isolation of branch predictor structures so that an Exception Level cannot train branch prediction for a different Exception Level to reliability hit in these trained prediction entries. Implemented new barrier SSBB.
- Implemented new barriers PSSBB and CSDB. Support for Speculative Store Bypass Safe (SSBS) bit enabling software to indicate whether hardware is permitted to load or store speculatively.
- No functional changes to core for this revision.