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3.16. Expansion   Header   (J13)  
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A ? 120 ‐ pin ? Expansion ? Port ? Header ? is ? provided ? on ? the ? Quick ? Start ? board ? for ? use ? with ? many ? optionally ?
expansion ? boards ? available ? from ? Freescale, ? or ? for ? custom ? designed ? boards ? made ? be ? the ? developer. ? At ?
the ? time ? of ? initial ? production, ? the ? following ? expansion ? boards ? are ? available ? from ? Freescale: ?
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MCIMXHDMICARD ? ?
MCIMX28LCD ? ? ?
HDMI ? signal ? output ? daughter ? card ?
4.3” ? WVGA ? Touch ? Panel ? LCD ? Display ?
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The ? Expansion ? Port ? makes ? the ? following ? features ? of ? the ? i.MX53 ? Processor ? available ? to ? be ? used ? on ? a ?
custom ? built ? expansion ? card: ?
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Two ? Serial ? Peripheral ? Interfaces ? (SPI) ? ? ?
Two ? I2S/SSI/AC97 ? Ports ?? ? ? ?
Two ? Inter ‐ Integrated ? Circuits ? (I2C) ? ? ?
2 ? UARTs ? ? ? ? ? ?
SPDIF ? Audio ?
USB ? ULPI ? Port ? ? ? ? ? ?
24 ‐ bit ? Data ? and ? display ? control ? signals ?
Resistive ? Touch ? Screen ? Interface ?
Various ? Voltage ? rails ?
3.17.
User   Interface   Buttons  
CSPI, ? eCSDPI2 ?
AUDMUX4, ? AUDMUX5 ?
I2C1, ? I2C2 ?
UART4, ? UART5 ?
USBH2 ?
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?????? There ? are ? four ? user ? interface ? buttons ? on ? the ? Quick ? Start ? board. ? Their ? functionality ? is ? as ? follows: ?
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POWER: ??
In ? the ? ‘Power ? Off’ ? state, ? momentarily ? pressing ? the ? POWER ? button ? will ? begin ? the ? PMIC ??
power ? on ? cycle. ? The ? PMIC ? supplied ? voltage ? rails ? will ? come ? up ? in ? the ? proper ? sequence ? to ?
power ? the ? i.MX53 ? Processor. ? When ? the ? processor ? is ? fully ? powered, ? the ? boot ? cycle ? will ? be ?
initiated. ?
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In ? the ? ‘Power ? On’ ? state, ? momentarily ? pressing ? the ? POWER ? button ? will ? send ? a ? signal ? to ? a ?
GPIO ? port ? for ? user ? defined ? action, ? but ? will ? not ? initiate ? a ? hardware ? shutdown. ?
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In ? the ? ‘Power ? On’ ? state, ? holding ? the ? power ? button ? down ? for ? greater ? than ? 5 ? seconds ? will ?
result ? in ? the ? PMIC ? initiating ? a ? shutdown ? to ? the ? ‘Standby’ ? power ? condition. ? This ? will ? also ?
be ? the ? result ? from ? the ? ‘Power ? Off’ ? state ? as ? the ? PMIC ? will ? transition ? into ? the ? ‘Power ? On’ ?
state ? and ? will ? still ? see ? the ? POWER ? button ? as ? held ? down. ?
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Freescale Semiconductor
Hardware User Guide for i.MX53 Quick Start Board,
Preliminary Rev 0.91
12
PUBI – Public Use Business Information ?
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