Subversion Repositories mips_enhanced

library ieee;

use ieee.std_logic_1164.all;

package pci_arb_pkg is

   subtype clk_type is std_logic;

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

   -- Constant definitions for AMBA(TM) APB

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

   constant PDMAX:   Positive range 8 to 32 := 32;       -- data width

   constant PAMAX:   Positive range 8 to 32 := 32;       -- address width

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

   -- Definitions for AMBA(TM) APB Slaves

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

   -- APB slave inputs (PCLK and PRESETn routed separately)

   type EAPB_Slv_In_Type is

      record

         PSEL:       Std_ULogic;                         -- slave select

         PENABLE:    Std_ULogic;                         -- strobe

         PADDR:      Std_Logic_Vector(PAMAX-1 downto 0); -- address bus (byte)

         PWRITE:     Std_ULogic;                         -- write

         PWDATA:     Std_Logic_Vector(PDMAX-1 downto 0); -- write data bus

      end record;

   -- APB slave outputs

   type EAPB_Slv_Out_Type is

      record

         PRDATA:     Std_Logic_Vector(PDMAX-1 downto 0); -- read data bus

      end record;

end pci_arb_pkg;