This group contains macros and defines to initialize the pull-up/-down devices of port pins. More...

Macros
#define	IO_PORT_PULL_DISABLE 0
	Bit mask to disable pull up/down for all selected pins. More...

#define	IO_PORT_PULL_ENABLE 0xff
	Bit mask to enable pull up/down for all selected pins. More...

#define	IO_PORT_PULL_DOWN 0
	Bit mask to select pull down for all selected pins. More...

#define	IO_PORT_PULL_UP 0xff
	Bit mask to select pull up for all selected pins. More...

#define	IO_PORT_PULL_INIT(port, pins, pull, dir)
	Sets the pull-up/-down properties of port pins. More...

Detailed Description

This group contains macros and defines to initialize the pull-up/-down devices of port pins.

Macro Definition Documentation

§ IO_PORT_PULL_DISABLE

#define IO_PORT_PULL_DISABLE 0

Bit mask to disable pull up/down for all selected pins.

§ IO_PORT_PULL_DOWN

#define IO_PORT_PULL_DOWN 0

Bit mask to select pull down for all selected pins.

§ IO_PORT_PULL_ENABLE

#define IO_PORT_PULL_ENABLE 0xff

Bit mask to enable pull up/down for all selected pins.

§ IO_PORT_PULL_INIT

#define IO_PORT_PULL_INIT	(	port,
		pins,
		pull,
		dir
	)

Value:

{ \
        SFR_PAGE(_pp1, noSST); \
        port##_PUDSEL &= (dir) | ~(pins); \
        port##_PUDSEL |= (dir) & (pins); \
        port##_PUDEN &= (pull) | ~(pins); \
        port##_PUDEN |= (pull) & (pins); \
        SFR_PAGE(_pp0, noSST); \
}

Sets the pull-up/-down properties of port pins.

Warning: Expects port page 0 and RMAP 0, take care in ISRs

Parameters

port	The parallel port to configure
pins	A bit mask of the pins to select
pull	A bit mask of pins to activate the internal pull up/down device for
dir	A bit mask of pins to set the pull direction

§ IO_PORT_PULL_UP

#define IO_PORT_PULL_UP 0xff

Bit mask to select pull up for all selected pins.