---------------------------------------------------------
	--Einstellung des Audio-Codecs durch eine State-Machine--
	---------------------------------------------------------
Codec_Properties:	PROCESS (clock_50, enable, key, reset, wm_i2c_busy)
	BEGIN	
		IF enable = '0' THEN
		
			IF RISING_EDGE (clock_50) THEN
				
				--Zurücksetzen der Startkondition sobald der Morsetaster losgelassen wird
				IF (key = '1') THEN
					wm_i2c_send_flag <= '0';
				END IF;
				
			END IF;
			
		
		
			IF RISING_EDGE(clock_50) AND wm_i2c_busy = '0' THEN
				
				IF reset = '0' THEN
				
					state <= reset_codec;
							
				END IF;
		
		
				CASE state IS
				
					WHEN	reset_codec =>
						wm_i2c_data(15 DOWNTO 9) <= "0001111";
						wm_i2c_data(8 DOWNTO 0) <= "000000000";
						wm_i2c_send_flag <= '1';
						state <= interface;
						
					WHEN slave =>
						wm_i2c_data(15 DOWNTO 9) <= "0000111";
						wm_i2c_data(8 DOWNTO 0) <= "000010011";
						wm_i2c_send_flag <= '1';
						state <= volume;
					
					WHEN volume =>
						wm_i2c_data(15 DOWNTO 9) <= "0000010";
						wm_i2c_data(8 DOWNTO 0) <= "101111001";
						wm_i2c_send_flag <= '1';
						state <= USB;
						
					WHEN power =>
						wm_i2c_data(15 DOWNTO 9) <= "0000110";
						wm_i2c_data(8 DOWNTO 0) <= "000000111";
						wm_i2c_send_flag <= '1';
						state <= slave;
						
					WHEN USB =>
						wm_i2c_data(15 DOWNTO 9) <= "0001000";
						wm_i2c_data(8 DOWNTO 0) <= "000000001";
						wm_i2c_send_flag <= '1';
						state <= lineout;
						
					WHEN interface =>
						wm_i2c_data(15 DOWNTO 9) <= "0001001";
						wm_i2c_data(8 DOWNTO 0) <= "111111111";
						wm_i2c_send_flag <= '1';
						state <= power;
						
					WHEN lineout =>
						wm_i2c_data(15 DOWNTO 9) <= "0000100";
						wm_i2c_data(8 DOWNTO 0) <= "000010010";
						wm_i2c_send_flag <= '1';
						state <= remove_mute;
					
					WHEN remove_mute =>
						wm_i2c_data(15 DOWNTO 9) <= "0000101";
						wm_i2c_data(8 DOWNTO 0) <= "000000000";
						wm_i2c_send_flag <= '1';
						state <= idle;
						
					WHEN OTHERS => NULL;
					
				END CASE;
			END IF;			
		END IF;
END PROCESS;

END structure;