ContentsSection number Title PageChapter 1About This Document1.1 Overview.......................................................................................................................................................................371.1.1 Purpose...........................................................................................................................................................371.1.2 Audience........................................................................................................................................................ 371.2 Conventions.................................................................................................................................................................. 371.2.1 Numbering systems........................................................................................................................................371.2.2 Typographic notation..................................................................................................................................... 381.2.3 Special terms.................................................................................................................................................. 38Chapter 2Introduction2.1 Overview.......................................................................................................................................................................392.1.1 Sub-family introduction................................................................................................................................. 392.2 Module functional categories........................................................................................................................................402.2.1 ARM Cortex-M0+ core modules................................................................................................................... 412.2.2 System modules............................................................................................................................................. 412.2.3 Memories and memory interfaces..................................................................................................................422.2.4 Clocks.............................................................................................................................................................422.2.5 Security and integrity modules...................................................................................................................... 432.2.6 Analog modules............................................................................................................................................. 432.2.7 Timer modules............................................................................................................................................... 432.2.8 Communication interfaces............................................................................................................................. 442.2.9 Human-machine interfaces............................................................................................................................ 452.3 Module to module interconnects...................................................................................................................................452.3.1 Interconnection overview...............................................................................................................................452.3.2 Analog reference options............................................................................................................................... 47Chapter 3Core OverviewKL27 Sub-Family Reference Manual , Rev. 5, 01/2016Freescale Semiconductor, Inc. 3
