Information

Section Number Title Page
Chapter 28
Flash Memory Module (FTFL)
28.1 Introduction...................................................................................................................................................................497
28.1.1 Features........................................................................................................................................................498
28.1.2 Block Diagram.............................................................................................................................................499
28.1.3 Glossary.......................................................................................................................................................500
28.2 External Signal Description..........................................................................................................................................502
28.3 Memory Map and Registers..........................................................................................................................................502
28.3.1 Flash Configuration Field Description.........................................................................................................503
28.3.2 Program Flash IFR Map...............................................................................................................................503
28.3.3 Data Flash IFR Map.....................................................................................................................................504
28.3.4 Register Descriptions...................................................................................................................................506
28.4 Functional Description..................................................................................................................................................518
28.4.1 Flash Protection............................................................................................................................................518
28.4.2 FlexNVM Description..................................................................................................................................520
28.4.3 Interrupts......................................................................................................................................................524
28.4.4 Flash Operation in Low-Power Modes........................................................................................................525
28.4.5 Functional Modes of Operation...................................................................................................................525
28.4.6 Flash Reads and Ignored Writes..................................................................................................................525
28.4.7 Read While Write (RWW)...........................................................................................................................526
28.4.8 Flash Program and Erase..............................................................................................................................526
28.4.9 Flash Command Operations.........................................................................................................................526
28.4.10 Margin Read Commands.............................................................................................................................533
28.4.11 Flash Command Description........................................................................................................................534
28.4.12 Security........................................................................................................................................................555
28.4.13 Reset Sequence............................................................................................................................................557
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
Freescale Semiconductor, Inc. 21