diff options
Diffstat (limited to 'src/rtl/rosc_entropy.v')
| -rw-r--r-- | src/rtl/rosc_entropy.v | 37 |
1 files changed, 30 insertions, 7 deletions
diff --git a/src/rtl/rosc_entropy.v b/src/rtl/rosc_entropy.v index c9600fb..0a7e60b 100644 --- a/src/rtl/rosc_entropy.v +++ b/src/rtl/rosc_entropy.v @@ -64,22 +64,30 @@ module rosc_entropy( //---------------------------------------------------------------- // Parameters. //---------------------------------------------------------------- - parameter ADDR_CTRL = 8'h00; + parameter ADDR_NAME0 = 8'h00; + parameter ADDR_NAME1 = 8'h01; + parameter ADDR_VERSION = 8'h02; + + parameter ADDR_CTRL = 8'h10; parameter CTRL_ENABLE_BIT = 0; - parameter ADDR_STATUS = 8'h01; + parameter ADDR_STATUS = 8'h11; parameter STATUS_ENTROPY_VALID_BIT = 0; - parameter ADDR_OP_A = 8'h08; - parameter ADDR_OP_B = 8'h09; + parameter ADDR_OP_A = 8'h18; + parameter ADDR_OP_B = 8'h19; - parameter ADDR_ENTROPY = 8'h10; - parameter ADDR_RAW = 8'h20; - parameter ADDR_ROSC_OUTPUTS = 8'h21; + parameter ADDR_ENTROPY = 8'h20; + parameter ADDR_RAW = 8'h21; + parameter ADDR_ROSC_OUTPUTS = 8'h22; parameter DEFAULT_OP_A = 32'haaaaaaaa; parameter DEFAULT_OP_B = ~DEFAULT_OP_A; + parameter CORE_NAME0 = 32'h726f7363; // "rosc" + parameter CORE_NAME1 = 32'h20656e74; // " ent" + parameter CORE_VERSION = 32'h302e3130; // "0.10" + //---------------------------------------------------------------- // Registers including update variables and write enable. @@ -236,6 +244,21 @@ module rosc_entropy( else begin case (address) + ADDR_NAME0: + begin + tmp_read_data = CORE_NAME0; + end + + ADDR_NAME1: + begin + tmp_read_data = CORE_NAME1; + end + + ADDR_VERSION: + begin + tmp_read_data = CORE_VERSION; + end + ADDR_CTRL: begin tmp_read_data[CTRL_ENABLE_BIT] = enable_reg; |