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--
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--
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-- Description : Configuration parameters for the design
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-- Description : Configuration parameters for the design
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--
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--
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----------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------
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LIBRARY ieee;
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library ieee;
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USE ieee.std_logic_1164.ALL;
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use ieee.std_logic_1164.all;
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USE ieee.std_logic_unsigned.ALL;
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use ieee.std_logic_unsigned.all;
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PACKAGE config_Pkg IS
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package config_Pkg is
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----------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------
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-- CORE PARAMETERS
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-- CORE PARAMETERS
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----------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------
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-- Implement external interrupt
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-- Implement external interrupt
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CONSTANT CFG_INTERRUPT : boolean := true; -- Disable or enable external interrupt [0,1]
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constant CFG_INTERRUPT : boolean := true; -- Disable or enable external interrupt [0,1]
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-- Implement hardware multiplier
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-- Implement hardware multiplier
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CONSTANT CFG_USE_HW_MUL : boolean := false; -- Disable or enable multiplier [0,1]
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constant CFG_USE_HW_MUL : boolean := false; -- Disable or enable multiplier [0,1]
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-- Implement hardware barrel shifter
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-- Implement hardware barrel shifter
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CONSTANT CFG_USE_BARREL : boolean := false; -- Disable or enable barrel shifter [0,1]
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constant CFG_USE_BARREL : boolean := false; -- Disable or enable barrel shifter [0,1]
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-- Debug mode
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-- Debug mode
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CONSTANT CFG_DEBUG : boolean := false; -- Resets some extra registers for better readability
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constant CFG_DEBUG : boolean := false; -- Resets some extra registers for better readability
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-- and enables feedback (report) [0,1]
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-- and enables feedback (report) [0,1]
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-- Set CFG_DEBUG to zero to obtain best performance.
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-- Set CFG_DEBUG to zero to obtain best performance.
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-- Memory parameters
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-- Memory parameters
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CONSTANT CFG_DMEM_SIZE : positive := 32; -- Data memory bus size in 2LOG # elements
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constant CFG_DMEM_SIZE : positive := 32; -- Data memory bus size in 2LOG # elements
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CONSTANT CFG_IMEM_SIZE : positive := 16; -- Instruction memory bus size in 2LOG # elements
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constant CFG_IMEM_SIZE : positive := 16; -- Instruction memory bus size in 2LOG # elements
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CONSTANT CFG_BYTE_ORDER : boolean := true; -- Switch between MSB (1, default) and LSB (0) byte order policy
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constant CFG_BYTE_ORDER : boolean := true; -- Switch between MSB (1, default) and LSB (0) byte order policy
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-- Register parameters
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-- Register parameters
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CONSTANT CFG_REG_FORCE_ZERO : boolean := true; -- Force data to zero if register address is zero [0,1]
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constant CFG_REG_FORCE_ZERO : boolean := true; -- Force data to zero if register address is zero [0,1]
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CONSTANT CFG_REG_FWD_WB : boolean := true; -- Forward writeback to loosen register memory requirements [0,1]
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constant CFG_REG_FWD_WRB : boolean := true; -- Forward writeback to loosen register memory requirements [0,1]
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CONSTANT CFG_MEM_FWD_WB : boolean := true; -- Forward memory result in stead of introducing stalls [0,1]
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constant CFG_MEM_FWD_WRB : boolean := true; -- Forward memory result in stead of introducing stalls [0,1]
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----------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------
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-- CONSTANTS (currently not configurable / not tested)
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-- CONSTANTS (currently not configurable / not tested)
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----------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------
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CONSTANT CFG_DMEM_WIDTH : positive := 32; -- Data memory width in bits
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constant CFG_DMEM_WIDTH : positive := 32; -- Data memory width in bits
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CONSTANT CFG_IMEM_WIDTH : positive := 32; -- Instruction memory width in bits
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constant CFG_IMEM_WIDTH : positive := 32; -- Instruction memory width in bits
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CONSTANT CFG_GPRF_SIZE : positive := 5; -- General Purpose Register File Size in 2LOG # elements
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constant CFG_GPRF_SIZE : positive := 5; -- General Purpose Register File Size in 2LOG # elements
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----------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------
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-- BUS PARAMETERS
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-- BUS PARAMETERS
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----------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------
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TYPE memory_map_type IS ARRAY(natural RANGE <>) OF std_logic_vector(CFG_DMEM_WIDTH - 1 DOWNTO 0);
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type memory_map_type is array(natural range <>) of std_logic_vector(CFG_DMEM_WIDTH - 1 downto 0);
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CONSTANT CFG_NUM_SLAVES : positive := 2;
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constant CFG_NUM_SLAVES : positive := 2;
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CONSTANT CFG_MEMORY_MAP : memory_map_type(0 TO CFG_NUM_SLAVES) := (X"00000000", X"00FFFFFF", X"FFFFFFFF");
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constant CFG_MEMORY_MAP : memory_map_type(0 to CFG_NUM_SLAVES) := (X"00000000", X"00FFFFFF", X"FFFFFFFF");
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END config_Pkg;
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END config_Pkg;
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