| 1 |
2 |
mikel262 |
--------------------------------------------------------------------------------
|
| 2 |
|
|
-- --
|
| 3 |
|
|
-- V H D L F I L E --
|
| 4 |
|
|
-- COPYRIGHT (C) 2006 --
|
| 5 |
|
|
-- --
|
| 6 |
|
|
--------------------------------------------------------------------------------
|
| 7 |
|
|
--
|
| 8 |
|
|
-- Title : MDCT_PKG
|
| 9 |
|
|
-- Design : MDCT Core
|
| 10 |
|
|
-- Author : Michal Krepa
|
| 11 |
|
|
--
|
| 12 |
|
|
--------------------------------------------------------------------------------
|
| 13 |
|
|
--
|
| 14 |
|
|
-- File : MDCT_PKG.VHD
|
| 15 |
|
|
-- Created : Sat Mar 5 2006
|
| 16 |
|
|
--
|
| 17 |
|
|
--------------------------------------------------------------------------------
|
| 18 |
|
|
--
|
| 19 |
|
|
-- Description : Package for MDCT core
|
| 20 |
|
|
--
|
| 21 |
|
|
--------------------------------------------------------------------------------
|
| 22 |
|
|
|
| 23 |
|
|
library IEEE;
|
| 24 |
|
|
use IEEE.STD_LOGIC_1164.all;
|
| 25 |
|
|
use ieee.numeric_std.all;
|
| 26 |
|
|
|
| 27 |
|
|
package MDCT_PKG is
|
| 28 |
18 |
mikel262 |
|
| 29 |
2 |
mikel262 |
constant IP_W : INTEGER := 8;
|
| 30 |
|
|
constant OP_W : INTEGER := 12;
|
| 31 |
|
|
constant N : INTEGER := 8;
|
| 32 |
|
|
constant COE_W : INTEGER := 12;
|
| 33 |
|
|
constant ROMDATA_W : INTEGER := COE_W+2;
|
| 34 |
|
|
constant ROMADDR_W : INTEGER := 6;
|
| 35 |
|
|
constant RAMDATA_W : INTEGER := 10;
|
| 36 |
|
|
constant RAMADRR_W : INTEGER := 6;
|
| 37 |
|
|
constant COL_MAX : INTEGER := N-1;
|
| 38 |
|
|
constant ROW_MAX : INTEGER := N-1;
|
| 39 |
|
|
constant LEVEL_SHIFT : INTEGER := 128;
|
| 40 |
|
|
constant DA_W : INTEGER := ROMDATA_W+IP_W;
|
| 41 |
|
|
constant DA2_W : INTEGER := DA_W+2;
|
| 42 |
|
|
-- 2's complement numbers
|
| 43 |
|
|
constant AP : SIGNED(ROMDATA_W-1 downto 0) := "00" & "010110101000";
|
| 44 |
|
|
constant BP : SIGNED(ROMDATA_W-1 downto 0) := "00" & "011101100100";
|
| 45 |
|
|
constant CP : SIGNED(ROMDATA_W-1 downto 0) := "00" & "001100010000";
|
| 46 |
|
|
constant DP : SIGNED(ROMDATA_W-1 downto 0) := "00" & "011111011001";
|
| 47 |
|
|
constant EP : SIGNED(ROMDATA_W-1 downto 0) := "00" & "011010100111";
|
| 48 |
|
|
constant FP : SIGNED(ROMDATA_W-1 downto 0) := "00" & "010001110010";
|
| 49 |
|
|
constant GP : SIGNED(ROMDATA_W-1 downto 0) := "00" & "000110010000";
|
| 50 |
|
|
|
| 51 |
|
|
constant AM : SIGNED(ROMDATA_W-1 downto 0) := "11" & "101001011000";
|
| 52 |
|
|
constant BM : SIGNED(ROMDATA_W-1 downto 0) := "11" & "100010011100";
|
| 53 |
|
|
constant CM : SIGNED(ROMDATA_W-1 downto 0) := "11" & "110011110000";
|
| 54 |
|
|
constant DM : SIGNED(ROMDATA_W-1 downto 0) := "11" & "100000100111";
|
| 55 |
|
|
constant EM : SIGNED(ROMDATA_W-1 downto 0) := "11" & "100101011001";
|
| 56 |
|
|
constant FM : SIGNED(ROMDATA_W-1 downto 0) := "11" & "101110001110";
|
| 57 |
|
|
constant GM : SIGNED(ROMDATA_W-1 downto 0) := "11" & "111001110000";
|
| 58 |
|
|
|
| 59 |
|
|
end MDCT_PKG;
|
