Information

Section number Title Page
Chapter 6
Reset and Boot
6.1 Introduction...................................................................................................................................................................177
6.2 Reset..............................................................................................................................................................................178
6.2.1 Power-on reset (POR)..................................................................................................................................178
6.2.2 System reset sources....................................................................................................................................178
6.2.3 MCU Resets.................................................................................................................................................182
6.2.4 Reset Pin .....................................................................................................................................................184
6.2.5 Debug resets.................................................................................................................................................184
6.3 Boot...............................................................................................................................................................................185
6.3.1 Boot sources.................................................................................................................................................185
6.3.2 Boot options.................................................................................................................................................185
6.3.3 FOPT boot options.......................................................................................................................................186
6.3.4 Boot sequence..............................................................................................................................................187
Chapter 7
Power Management
7.1 Introduction...................................................................................................................................................................189
7.2 Power modes.................................................................................................................................................................189
7.3 Entering and exiting power modes...............................................................................................................................191
7.4 Power mode transitions.................................................................................................................................................192
7.5 Power modes shutdown sequencing.............................................................................................................................193
7.6 Module Operation in Low Power Modes......................................................................................................................193
7.7 Clock Gating.................................................................................................................................................................196
Chapter 8
Security
8.1 Introduction...................................................................................................................................................................197
8.2 Flash Security...............................................................................................................................................................197
8.3 Security Interactions with other Modules.....................................................................................................................198
8.3.1 Security interactions with FlexBus..............................................................................................................198
8.3.2 Security Interactions with EzPort................................................................................................................198
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
8
Preliminary
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