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[/] [mkjpeg/] [trunk/] [design/] [mdct/] [MDCT_PKG.vhd] - Rev 56
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-------------------------------------------------------------------------------- -- -- -- V H D L F I L E -- -- COPYRIGHT (C) 2006 -- -- -- -------------------------------------------------------------------------------- -- -- Title : MDCT_PKG -- Design : MDCT Core -- Author : Michal Krepa -- -------------------------------------------------------------------------------- -- -- File : MDCT_PKG.VHD -- Created : Sat Mar 5 2006 -- -------------------------------------------------------------------------------- -- -- Description : Package for MDCT core -- -------------------------------------------------------------------------------- library IEEE; use IEEE.STD_LOGIC_1164.all; use ieee.numeric_std.all; package MDCT_PKG is constant IP_W : INTEGER := 8; constant OP_W : INTEGER := 12; constant N : INTEGER := 8; constant COE_W : INTEGER := 12; constant ROMDATA_W : INTEGER := COE_W+2; constant ROMADDR_W : INTEGER := 6; constant RAMDATA_W : INTEGER := 10; constant RAMADRR_W : INTEGER := 6; constant COL_MAX : INTEGER := N-1; constant ROW_MAX : INTEGER := N-1; constant LEVEL_SHIFT : INTEGER := 128; constant DA_W : INTEGER := ROMDATA_W+IP_W; constant DA2_W : INTEGER := DA_W+2; -- 2's complement numbers constant AP : INTEGER := 1448; constant BP : INTEGER := 1892; constant CP : INTEGER := 784; constant DP : INTEGER := 2009; constant EP : INTEGER := 1703; constant FP : INTEGER := 1138; constant GP : INTEGER := 400; constant AM : INTEGER := -1448; constant BM : INTEGER := -1892; constant CM : INTEGER := -784; constant DM : INTEGER := -2009; constant EM : INTEGER := -1703; constant FM : INTEGER := -1138; constant GM : INTEGER := -400; type T_ROM1DATAO is array(0 to 8) of STD_LOGIC_VECTOR(ROMDATA_W-1 downto 0); type T_ROM1ADDRO is array(0 to 8) of STD_LOGIC_VECTOR(ROMADDR_W-1 downto 0); type T_ROM2DATAO is array(0 to 10) of STD_LOGIC_VECTOR(ROMDATA_W-1 downto 0); type T_ROM2ADDRO is array(0 to 10) of STD_LOGIC_VECTOR(ROMADDR_W-1 downto 0); end MDCT_PKG;
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