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5.10. Expansion   Port  
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The ? function ? of ? the ? Quick ? Start ? board ? Expansion ? Port ? is ? to ? bring ? out ? many ? of ? the ? i.MX53 ? pins ? that ? are ?
otherwise ? unused ? on ? the ? Quick ? Start ? board. ? The ? overriding ? design ? considerations ? for ? this ? port ? were ? to ?
be ? able ? to ? support ? HDMI ? functionality ? through ? a ? daughter ? card ? (primary) ? while ? also ? being ? able ? to ?
support ? an ? existing ? LCD ? daughter ? card ? (secondary). ? In ? meeting ? these ? considerations, ? the ? Expansion ? Port ?
was ? also ? constrained ? to ? meet ? a ? general ? power/signal ? format ? adopted ? across ? all ? recent ? i.MX ?
development ? board ? designs, ? primarily ? for ? safety ? and ? equipment ? damage ? consideration. ? For ? these ?
reasons, ? there ? may ? be ? some ? functionalities ? of ? the ? i.MX53 ? chip ? that ? are ? not ? accessible ? on ? the ? i.MX53 ?
Quick ? Start ? board. ? This ? board ? simply ? cannot ? be ? all ? things ? to ? all ? people. ? The ? MCIMX53SMD ? is ? available ? for ?
developers ? looking ? for ? more ? options. ?
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For ? developers ? who ? are ? interested ? in ? designing ? custom ? daughter ? cards ? for ? use ? with ? the ? Quick ? Start ?
board, ? the ? following ? capabilities ? are ? available ? from ? the ? Expansion ? Port. ? Please ? note ? that ? many ? pins ? are ?
muxed, ? so ? that ? not ? all ? features ? are ? available ? at ? the ? same ? time: ?
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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 ?
CSI ? Camera ?
CSPI, ? eCSDPI2 ?
AUDMUX4, ? AUDMUX5 ?
I2C1, ? I2C2 ?
UART4, ? UART5 ?
USBH2 ?
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In ? addition ? to ? the ? Data/Signal ? traces ? to ? support ? the ? above ? functionality, ? the ? following ? power ? sources ? are ?
also ? included ? on ? the ? Expansion ? Port: ?
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5V_MAIN ? ?
LCD_3V2 ? ?
VIOHI_2V775 ? ?
VLDO8_1V8 ? ?
VLDO9_1V5 ? ?
VLCD_BLT ? ?
5V ? ? ?
3.2V ? ? ?
2.775V ? ? ?
1.8V ? ? ?
1.5V ? ? ?
Current ? Source ? ?
DC ? Power ? Supply ?
DCDC_3V2 ?
VLDO4 ?
VLDO8 ?
VLDO9 ?
PMIC ? LED ? Driver ?
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Note ? that ? VLDO9 ? is ? only ? used ? by ? the ? Expansion ? Port ? on ? the ? Quick ? Start ? board. ? The ? developer ? is ? free ? to ?
reprogram ? the ? voltage ? of ? the ? LDO ? regulator ? on ? the ? PMIC ? for ? whatever ? voltage ? may ? be ? required ? subject ?
to ? the ? following ? limitations ? (1.25V ? – ? 3.6V, ? 100mA). ? The ? proper ? connector ? to ? mate ? with ? Expansion ? Port ?
J13 ? is ? made ? by ? Samtec, ? QTH ‐ 060 ‐ XX ‐ L ‐ D ‐ A, ? where ? XX ? determines ? the ? height ? of ? the ? connector. ?
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For ? a ? table ? of ? available ? pin ‐ mux ? options, ? see ? the ? expansion ? port ? pin ‐ out ? in ? section ? 6. ?
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Freescale Semiconductor
Hardware User Guide for i.MX53 Quick Start Board,
Preliminary Rev 0.91
56
PUBI – Public Use Business Information ?
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