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[/] [mblite/] [trunk/] [designs/] [core/] [config_Pkg.vhd] - Rev 9
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---------------------------------------------------------------------------------------------- -- -- Input file : config_Pkg.vhd -- Design name : config_Pkg -- Author : Tamar Kranenburg -- Company : Delft University of Technology -- : Faculty EEMCS, Department ME&CE -- : Systems and Circuits group -- -- Description : Configuration parameters for the design -- ---------------------------------------------------------------------------------------------- library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; package config_Pkg is ---------------------------------------------------------------------------------------------- -- CORE PARAMETERS ---------------------------------------------------------------------------------------------- -- Implement external interrupt constant CFG_INTERRUPT : boolean := true; -- Disable or enable external interrupt [0,1] -- Implement hardware multiplier constant CFG_USE_HW_MUL : boolean := true; -- Disable or enable multiplier [0,1] -- Implement hardware barrel shifter constant CFG_USE_BARREL : boolean := true; -- Disable or enable barrel shifter [0,1] -- Debug mode constant CFG_DEBUG : boolean := true; -- Resets some extra registers for better readability -- and enables feedback (report) [0,1] -- Set CFG_DEBUG to zero to obtain best performance. -- Memory parameters constant CFG_DMEM_SIZE : positive := 32; -- Data memory bus size in 2LOG # elements constant CFG_IMEM_SIZE : positive := 16; -- Instruction memory bus size in 2LOG # elements constant CFG_BYTE_ORDER : boolean := true; -- Switch between MSB (1, default) and LSB (0) byte order policy -- Register parameters constant CFG_REG_FORCE_ZERO : boolean := true; -- Force data to zero if register address is zero [0,1] constant CFG_REG_FWD_WRB : boolean := true; -- Forward writeback to loosen register memory requirements [0,1] constant CFG_MEM_FWD_WRB : boolean := true; -- Forward memory result in stead of introducing stalls [0,1] ---------------------------------------------------------------------------------------------- -- CONSTANTS (currently not configurable / not tested) ---------------------------------------------------------------------------------------------- constant CFG_DMEM_WIDTH : positive := 32; -- Data memory width in bits constant CFG_IMEM_WIDTH : positive := 32; -- Instruction memory width in bits constant CFG_GPRF_SIZE : positive := 5; -- General Purpose Register File Size in 2LOG # elements ---------------------------------------------------------------------------------------------- -- BUS PARAMETERS ---------------------------------------------------------------------------------------------- type memory_map_type is array(natural range <>) of std_logic_vector(CFG_DMEM_WIDTH - 1 downto 0); constant CFG_NUM_SLAVES : positive := 2; constant CFG_MEMORY_MAP : memory_map_type(0 to CFG_NUM_SLAVES) := (X"00000000", X"00FFFFFF", X"FFFFFFFF"); end config_Pkg;
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