?
?
?
?
?
?
Regulator ?
VBUCKPRO ?
VBUCKPERI ?
VLDO6 ?
VLDO8 ?
VLDO10 ?
VBUCKCORE ?
VBUCKMEM ?
VBUCKPERI/SW ?
VLDO2 ?
VLDO5 ?
VLDO4 ?
VLDO7 ?
VLDO3 ?
Time ? Slot ?
19 ? mSEC ?
23 ? mSEC ?
27 ? mSEC ?
31 ? mSEC ?
35 ? mSEC ?
64 ? mSEC ?
VLDO9 ?
DCDC_3V2 ?
?
? ? ? ???????? Table ? 1. ? ?? Regulator ? Timing ? Sequence ?
?
The ? Dialog ? PMIC ? will ? enter ? a ? SHUTDOWN/STANDBY ? condition ? by ? one ? of ? three ? ways; ? By ? a ? command ? from ?
the ? i.MX53 ? Processor ? via ? I2C ? communications, ? by ? i.MX53 ? Processor ? action ? to ? hold ? the ? nONKEY/KEEPACT ?
pin ? low ? for ? at ? least ? five ? seconds, ? or ? by ? hardware ? if ? the ? user ? holds ? down ? the ? POWER ? button ? for ? more ?
than ? five ? seconds. ? All ? three ? actions ? result ? in ? the ? Dialog ? PMIC ? powering ? down ? the ? voltage ? regulators ? in ?
reverse ? order ? of ? the ? power ? on ? sequence, ? except ? for ? VLDO1. ? A ? subsequent ? press ? of ? the ? POWER ? button ?
will ? initiate ? the ? same ? power ? on ? sequence ? as ? shown ? in ? Table ? 1 . ?
?
The ? various ? power ? rails ? supplied ? by ? the ? PMIC ? are ? discussed ? in ? the ? section ? on ? Quick ? Start ? Power ? Rails. ?
Other ? features ? of ? the ? Dialog ? PMIC ? implemented ? by ? the ? Quick ? Start ? board ? are ? discussed ? in ? subsequent ?
sub ‐ sections ? including: ? Li ‐ ION ? Battery ? Charging, ? Backlight ? LED ? Driver, ? Touch ‐ Screen ? Operation, ?
Miscellaneous. ?
?
? ?
Freescale Semiconductor
Hardware User Guide for i.MX53 Quick Start Board,
Preliminary Rev 0.91
32
PUBI – Public Use Business Information ?
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