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Section number Title Page
13.2.5 Mode Register (RCM_MR).........................................................................................................................293
Chapter 14
System Mode Controller
14.1 Introduction...................................................................................................................................................................295
14.2 Modes of operation.......................................................................................................................................................295
14.3 Memory map and register descriptions.........................................................................................................................297
14.3.1 Power Mode Protection register (SMC_PMPROT).....................................................................................297
14.3.2 Power Mode Control register (SMC_PMCTRL).........................................................................................299
14.3.3 VLLS Control register (SMC_VLLSCTRL)...............................................................................................300
14.3.4 Power Mode Status register (SMC_PMSTAT)...........................................................................................301
14.4 Functional description...................................................................................................................................................302
14.4.1 Power mode transitions................................................................................................................................302
14.4.2 Power mode entry/exit sequencing..............................................................................................................305
14.4.3 Run modes....................................................................................................................................................307
14.4.4 Wait modes..................................................................................................................................................309
14.4.5 Stop modes...................................................................................................................................................310
14.4.6 Debug in low power modes.........................................................................................................................313
Chapter 15
Power Management Controller
15.1 Introduction...................................................................................................................................................................315
15.2 Features.........................................................................................................................................................................315
15.3 Low-voltage detect (LVD) system................................................................................................................................315
15.3.1 LVD reset operation.....................................................................................................................................316
15.3.2 LVD interrupt operation...............................................................................................................................316
15.3.3 Low-voltage warning (LVW) interrupt operation.......................................................................................316
15.4 I/O retention..................................................................................................................................................................317
15.5 Memory map and register descriptions.........................................................................................................................317
15.5.1 Low Voltage Detect Status And Control 1 register (PMC_LVDSC1)........................................................317
15.5.2 Low Voltage Detect Status And Control 2 register (PMC_LVDSC2)........................................................319
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
12
Preliminary
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