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Mux configuration

225 bytes removed, 10:11, 2 February 2012
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• '''INPUTENABLE''' (1 bit) drives an input enable signal to the I/O CTRL.
• '''Off mode values''' (5 bits) override the pin state when the OFFENABLE bit CONTROL. This feature is used for power saving management. Pins in off mode can be configured like output with HIGH or LOW value or input with wake-up detection feature. For input pins, OFFOUTENABLE and OFFOUTVALUE bits can not be configured:
->OFFENABLE: Off mode pin state override control. Set to 1 to enable the feature and to 0 to disable it.
• '''Wake-up''' bits (2 bits):
-&gt;WAKEUPENABLE: Enable wake-up detection on input. It is also the off mode input enable value.<br> -&gt;WAKEUPEVENT: Wake-up event status for the pin.'''<br>'''  NOTE: Pins in off mode can be configured like output with HIGH or LOW value or input with wake-up detection feature.<br>  NOTE: For input pins, OFFOUTENABLE and OFFOUTVALUE bits can not be configured.<br>
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'''Mode 1 to mode 6''' are possible modes for alternate functions. On each pin, some modes are used effectively for alternate functions, while other modes are unused and correspond to no functional configuration.
'''The safe mode (default mode 7) '''avoids any risk of electrical contention by configuring the pin as an input with no functional interface mapped to it. '''The safe mode is used mainly as the default mode for all pins containing no mandatory interface at the release of power-on reset.'''  NOTE: For most pads, the reset value for the MUXMODE field is 0b111. The exceptions are pads to be used at boot time to transfer data from selected peripherals to the external flash memory. <br>
=== Pull Selection ===
INPUTENABLE = 1: Input Enable. Pin is configured in bidirectional mode.
NOTE: For proper functioning of some peripherals INPUTENABLE must be set to 1 for pads configured to drive output clocks:  *SDRC *, GPMC *, McSPIi *, I2Ci *, MMCi *, McBSPi *, HSUSB HOST.
=== '''Off mode values''' and '''Wake-up''' ===
This mode is used to disable some pins and reduce power consumption. <br>
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=== Important tips<br> ===
*Editing and compile kernel sources. [[How to set up UART2 in J990#Third_way|Example]].<br>
[http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=spruf98v&fileType=pdf More information] about mux.
= Available peripherals on external connector =
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