NXP Semiconductors K22F series - Page 21

Section number Title Page
26.6 External Clock Connections......................................................................................................................................... 580
26.7 Memory Map/Register Definitions...............................................................................................................................581
26.7.1 OSC Memory Map/Register Definition.......................................................................................................581
26.8 Functional Description..................................................................................................................................................583
26.8.1 OSC module states.......................................................................................................................................583
26.8.2 OSC module modes..................................................................................................................................... 585
26.8.3 Counter.........................................................................................................................................................587
26.8.4 Reference clock pin requirements................................................................................................................587
26.9 Reset..............................................................................................................................................................................587
26.10 Low power modes operation.........................................................................................................................................588
26.11 Interrupts.......................................................................................................................................................................588
Chapter 27
RTC Oscillator (OSC32K)
27.1 Introduction...................................................................................................................................................................589
27.1.1 Features and Modes..................................................................................................................................... 589
27.1.2 Block Diagram............................................................................................................................................. 589
27.2 RTC Signal Descriptions.............................................................................................................................................. 590
27.2.1 EXTAL32 — Oscillator Input..................................................................................................................... 590
27.2.2 XTAL32 — Oscillator Output..................................................................................................................... 590
27.3 External Crystal Connections....................................................................................................................................... 591
27.4 Memory Map/Register Descriptions.............................................................................................................................591
27.5 Functional Description..................................................................................................................................................591
27.6 Reset Overview.............................................................................................................................................................592
27.7 Interrupts.......................................................................................................................................................................592
Chapter 28
Flash Memory Controller (FMC)
28.1 Introduction...................................................................................................................................................................593
28.1.1 Overview......................................................................................................................................................593
28.1.2 Features........................................................................................................................................................ 593
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 21