Subversion Repositories iicmb

--==============================================================================

--                                                                             |

--    Project: IIC Multiple Bus Controller (IICMB)                             |

--                                                                             |

--    Module:  Package for internal declarations.                              |

--    Version:                                                                 |

--             1.0,   April 29, 2016                                           |

--                                                                             |

--    Author:  Sergey Shuvalkin, (sshuv2@opencores.org)                        |

--                                                                             |

--==============================================================================

--==============================================================================

-- Copyright (c) 2016, Sergey Shuvalkin                                        |

-- All rights reserved.                                                        |

--                                                                             |

-- Redistribution and use in source and binary forms, with or without          |

-- modification, are permitted provided that the following conditions are met: |

--                                                                             |

-- 1. Redistributions of source code must retain the above copyright notice,   |

--    this list of conditions and the following disclaimer.                    |

-- 2. Redistributions in binary form must reproduce the above copyright        |

--    notice, this list of conditions and the following disclaimer in the      |

--    documentation and/or other materials provided with the distribution.     |

--                                                                             |

-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |

-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE   |

-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  |

-- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE    |

-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR         |

-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF        |

-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS    |

-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN     |

-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)     |

-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE  |

-- POSSIBILITY OF SUCH DAMAGE.                                                 |

--==============================================================================

library ieee;

use ieee.std_logic_1164.all;

--==============================================================================

package iicmb_int_pkg is

  ------------------------------------------------------------------------------

  -- Bit-level master mode commands:

  ------------------------------------------------------------------------------

  type mbc_type is

  (

    mbc_start,        -- Start          --> Done | Arbitration Lost

    mbc_stop,         -- Stop           --> Done

    mbc_write_0,      -- Write Bit 0    --> Done | Error

    mbc_write_1,      -- Write Bit 1    --> Done | Arbitration Lost | Error

    mbc_read          -- Read Bit       --> Bit 0 Received | Bit 1 Received | Error

  );

  ------------------------------------------------------------------------------

  ------------------------------------------------------------------------------

  -- Bit-level master mode responses:

  ------------------------------------------------------------------------------

  type mbr_type is

  (

    mbr_done,         -- Done

    mbr_arb_lost,     -- Arbitration Lost

    mbr_bit_0,        -- Bit 0 Received

    mbr_bit_1,        -- Bit 1 Received

    mbr_error         -- Error

  );

  ------------------------------------------------------------------------------

  ------------------------------------------------------------------------------

  -- Bit-level slave mode commands:

  ------------------------------------------------------------------------------

  type sbc_type is

  (

    sbc_idle,         -- Idle

    sbc_hold,         -- Clock stretching

    sbc_write_0,      -- Write Bit 0

    sbc_write_1,      -- Write Bit 1

    sbc_read          -- Read Bit

  );

  ------------------------------------------------------------------------------

  ------------------------------------------------------------------------------

  -- Bit-level slave mode responses:

  ------------------------------------------------------------------------------

  type sbr_type is

  (

    sbr_start,        -- Start

    sbr_stop,         -- Stop

    sbr_bit_0,        -- Bit 0 received

    sbr_bit_1         -- Bit 1 received

  );

  ------------------------------------------------------------------------------

end package iicmb_int_pkg;

--==============================================================================

--==============================================================================

package body iicmb_int_pkg is

end package body iicmb_int_pkg;

--==============================================================================