From 19918044375794d90b9fa7d960b50d1832115c4e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Joachim=20Stro=CC=88mbergson?= Date: Tue, 25 Feb 2014 10:20:02 +0100 Subject: Adding more info about the core. --- README.md | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/README.md b/README.md index d27d280..10150df 100644 --- a/README.md +++ b/README.md @@ -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.*** -- cgit v1.2.3