Information

Chapter 11
Port control and interrupts (PORT)
11.1 Introduction
NOTE
For the chip-specific implementation details of this module's
instances see the chip configuration chapter.
11.1.1 Overview
The port control and interrupt (PORT) module provides support for external interrupt,
digital filtering and port control functions. Most functions can be configured
independently for each pin in the 32-bit port and affect the pin regardless of its pin
muxing state.
There is one instance of the PORT module for each port. Not all pins within each port are
implemented on a specific device.
11.1.2 Features
• Pin interrupt
• Interrupt flag and enable registers for each pin
• Supports edge sensitive (rising, falling, both) or level sensitive (low, high)
configured per pin
• Support for interrupt or DMA request configured per pin
• Asynchronous wakeup in low-power modes
• Pin interrupt is functional in all digital pin muxing modes
• Digital input filter
• Digital input filter for each pin, usable by any digital peripheral muxed onto pin
• Individual enable or bypass control bit per pin
K10 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc. 235