Information

Section Number Title Page
26.1.2 Block Diagram.............................................................................................................................................479
26.2 RTC Signal Descriptions..............................................................................................................................................480
26.2.1 EXTAL32 — Oscillator Input.....................................................................................................................480
26.2.2 XTAL32 — Oscillator Output.....................................................................................................................480
26.3 External Crystal Connections.......................................................................................................................................481
26.4 Memory Map/Register Descriptions.............................................................................................................................481
26.5 Functional Description..................................................................................................................................................481
26.6 Reset Overview.............................................................................................................................................................482
26.7 Interrupts.......................................................................................................................................................................482
Chapter 27
Flash Memory Controller (FMC)
27.1 Introduction...................................................................................................................................................................483
27.1.1 Overview......................................................................................................................................................483
27.1.2 Features........................................................................................................................................................484
27.2 Modes of operation.......................................................................................................................................................484
27.3 External signal description............................................................................................................................................484
27.4 Memory map and register descriptions.........................................................................................................................485
27.4.1 Flash Access Protection Register (FMC_PFAPR).......................................................................................487
27.4.2 Flash Control Register (FMC_PFB0CR).....................................................................................................489
27.4.3 Cache Tag Storage (FMC_TAGVDW0Sn).................................................................................................491
27.4.4 Cache Tag Storage (FMC_TAGVDW1Sn).................................................................................................492
27.4.5 Cache Tag Storage (FMC_TAGVDW2Sn).................................................................................................492
27.4.6 Cache Tag Storage (FMC_TAGVDW3Sn).................................................................................................493
27.4.7 Cache Data Storage (FMC_DATAW0Sn)...................................................................................................494
27.4.8 Cache Data Storage (FMC_DATAW1Sn)...................................................................................................494
27.4.9 Cache Data Storage (FMC_DATAW2Sn)...................................................................................................495
27.4.10 Cache Data Storage (FMC_DATAW3Sn)...................................................................................................495
27.5 Functional description...................................................................................................................................................496
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
20 Freescale Semiconductor, Inc.