ADC 6021 Dokumentacja Pobierz pdf (Strona 24)

MYXPM6021*

Revision 1.1 - 10/21/14

*Advanced information. Subject to change without notice.

MYXPM6021*

Form #: CSI-D-685 Document 011

8 Power Controller State Machine

8.1 Overview

ThepowercontrollerstatemachineisthemainstatemachineoftheMYXPM6021.Itiscomprisedoftwophases.Therst

phaseimplimentsthepowerupsequence.Itevaluatesalloftheconditionsforasafebootupandthecongurationdata

isalsoreadoutoftheOTP/EEPROM.Thesecondphaseimplimentsthepowersequencingsothatallofthepowerrails

fortheSoCandtheplatformareturnedonaccordingtocertainsequencingrules.

Thesequencerisveryexibleintermsofcomponentenableorderingandtheintermediatedelaysbetweenthem.Optionally

thesequencercanwaitforacertaincondition;forexampleabreakpoint,anexternalprogrammedtriggerorwaitingina

systempowerstatelikeSOC_S4.ThesequencecongurationisstoredintheOTPmemory,thecontentsofwhichare

readoutduringtherstpowerupcycle.Thesequenceralsocontrolstheclockrequestfordifferentblocks.

8.2 Power State Transitions

Figure 5: State Transitions

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 112 113

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ADC 6021 Dokumentacja Strona 24