- enum IfaceWidthType { Expression = 1, Boolean, Natural};
- enum IfacePurpose { Data = 1, Clock = 2, Reset = 3, Wishbone = 4 };
- enum IfaceDirection { Input = 1, Output = 2, InOut = 3 };
- enum IfaceVHDLContext { Entity = 1, Component = 2, Architecture = 3 }; // NB : 3 is when creating an instance of the block that owns this iface
+ enum IfaceWidthType { Expression = 1, Boolean, Natural, Inherited}; //! Inherited is only for Group interface
+ enum IfaceWidthDir { LittleEndian = 1, BigEndian}; //! LittleEndian = X downto 0, BigEndian = 0 to X
+ enum IfacePurpose { AnyPurpose = 0, Data = 1, Control, Clock, Reset, Wishbone };
+ enum IfaceDirection { AnyDirection = 0, Input = 1, Output = 2, InOut = 3 };
+ enum IfaceVHDLContext {AnyContext = 0, Entity = 1, Component = 2, Instance = 3, Signal = 4 };