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84f13c8)
- provide default manufacturer ID that is invalid according to spec
- provide default for all MANUFACTURER, PART_NUMBER and VERSION
generic (
IR_WIDTH: integer := 2;
generic (
IR_WIDTH: integer := 2;
- PART_NUMBER: std_logic_vector(15 downto 0);
- VERSION: std_logic_vector(3 downto 0) := "0100";
- MANUFACTURER: std_logic_vector(10 downto 0)
+ MANUFACTURER: std_logic_vector(10 downto 0) := "10001111111";
+ PART_NUMBER: std_logic_vector(15 downto 0) := "0000000000000001";
+ VERSION: std_logic_vector(3 downto 0) := "0000"
);
port (
-- needed TAP signals
);
port (
-- needed TAP signals
generic (
IR_WIDTH: integer := 2;
generic (
IR_WIDTH: integer := 2;
- PART_NUMBER: std_logic_vector(15 downto 0);
- VERSION: std_logic_vector(3 downto 0) := "0000";
- MANUFACTURER: std_logic_vector(10 downto 0)
+ -- The default MANUFACTURING ID is not representing a valid
+ -- manufacturer according to the JTAG standard
+ MANUFACTURER: std_logic_vector(10 downto 0) := "10001111111";
+ PART_NUMBER: std_logic_vector(15 downto 0) := "0000000000000001";
+ VERSION: std_logic_vector(3 downto 0) := "0000"
);
port (
-- needed TAP signals
);
port (
-- needed TAP signals
component c4m_jtag_tap_controller is
generic (
component c4m_jtag_tap_controller is
generic (
- IR_WIDTH: integer := 2;
- IOS: integer := 1;
+ IR_WIDTH: integer := 2;
+ IOS: integer := 1;
- VERSION: std_logic_vector(3 downto 0) := "0000"
+ -- The default MANUFACTURING ID is not representing a valid
+ -- manufacturer according to the JTAG standard
+ MANUFACTURER: std_logic_vector(10 downto 0) := "10001111111";
+ PART_NUMBER: std_logic_vector(15 downto 0) := "0000000000000001";
+ VERSION: std_logic_vector(3 downto 0) := "0000"
);
port (
-- The TAP signals
);
port (
-- The TAP signals
entity c4m_jtag_tap_controller is
generic (
entity c4m_jtag_tap_controller is
generic (
- IR_WIDTH: integer := 2;
- IOS: integer := 1;
+ IR_WIDTH: integer := 2;
+ IOS: integer := 1;
- VERSION: std_logic_vector(3 downto 0)
+ MANUFACTURER: std_logic_vector(10 downto 0) := "10001111111";
+ PART_NUMBER: std_logic_vector(15 downto 0) := "0000000000000001";
+ VERSION: std_logic_vector(3 downto 0) := "0000"
);
port (
-- The TAP signals
);
port (
-- The TAP signals
signal IO_TDO: std_logic;
signal IO_TDO_EN: std_logic;
signal EN: std_logic_vector(2 downto 0) := "000";
signal IO_TDO: std_logic;
signal IO_TDO_EN: std_logic;
signal EN: std_logic_vector(2 downto 0) := "000";
-
- -- TODO: Automate PART_NUMBER generation
- constant PART_NUMBER: std_logic_vector(15 downto 0) := "0000000010001001";
- -- TODO: Get manufacturer ID
- constant MANUFACTURER: std_logic_vector(10 downto 0) := "00000000000";
begin
STATE <= S_STATE;
NEXT_STATE <= S_NEXT_STATE;
begin
STATE <= S_STATE;
NEXT_STATE <= S_NEXT_STATE;