Module regs

Structs

• Dir
  Direction of GPIO pins.
• Dirclr
  DIR clear register.
• Dirset
  DIR set register.
• In
  Read GPIO port.
• Out
  Write GPIO port.
• Outclr
  Clear individual bits in GPIO port.
• Outset
  Set individual bits in GPIO port.
• PinCnf
  Configuration of GPIO pins.