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| -rw-r--r-- | README.md | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -25,12 +25,14 @@ The actual core consists of the following files: - sha256_w_mem.v - W message block memort and expansion logic. - sha256_k_constants.v - K constants ROM memory. -The top level entity is called sha256_core. +The top level entity is called sha256_core. This entity has wide +interfaces (512 bit block input, 256 bit digest). In order to make it +usable you probably want to wrap the core with a bus interface. -Unless you want to provide your own interface you also need to select -one top level wrapper. There are two wrappers provided: +Unless you want to provide your own interface you therefore also need to +select one top level wrapper. There are two wrappers provided: - sha256.v - A wrapper with a 32-bit memory like interface. -- wb_sha256.v - A wrapper that implement a [Wishbone](http://opencores.org/opencores,wishbone) interface. +- wb_sha256.v - A wrapper that implements a [Wishbone](http://opencores.org/opencores,wishbone) interface. ***Do not include both wrappers in the same project.*** |