usb_new_pck_commands.vhdl

实现USB接口功能的VHDL和verilog完整源代码

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---- File >>> usb_new_pck_commands.vhdl 
---- Iden >>>							980601-13:59:00
----
---- Project:           USB Development
---- Customer:          Philips_ITCL
----
---- VHDL Design Unit:  package PCK_COMMANDS
---- Written by:        Usb User
----                    Easics nv
----                    http://www.easics.com      
----                    mailto: [e-mail]
----
---- Creation Date:     Mon, 01 Jun 1998
----
---- Purpose:
----
---- Revision history:
----
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library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.numeric_std.all;

library work;
use work.PCK_GENERAL.all;

package PCK_COMMANDS is

  -- Commands handled by DEVICE_HANDLER
  constant GET_INTERRUPT_CODE:        byte      := "11110100"; -- F8h
  constant GET_FRAMENUMBER_CODE:      byte      := "11110101"; -- F9h
  constant GETSET_MODE_CODE:          byte      := "11110011"; -- F3h
  constant GET_ERROR_CODE:            byte      := "11111111"; -- FFh
  constant GETSET_DEVICE_STATUS_CODE: byte      := "11111110"; -- FEh
  constant GET_CHIPID_CODE:           byte      := "11111101"; -- FDh

  -- Commands handled by HUBCONTROLLER
  constant GETSET_PORTSTATUS_CODE:    five_bits := "11100";    -- E0h-E8h
     
  -- Commands handled by UC_HANDLER

end PCK_COMMANDS;


package body PCK_COMMANDS is

end PCK_COMMANDS;