About the state of pins for LCDIF of i.MX283 during reset

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About the state of pins for LCDIF of i.MX283 during reset

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yuuki
Senior Contributor II

Dear Freescale TIC,

I would like to maintain pins of LCDIF in the Low state until the power supply of a LCD module is stabilized.


Are the following pins in a Low state after Reset and during Reset?

・LCD_DATA[17..0」
・LCD_VSYNC
・LCD_HSYNC
・LCD_CLK
・LCD_ENABLE

Best Regards,

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Yuri
NXP Employee
NXP Employee

From section 8.1 (Pin Descriptions Overview) of the i.MX28 Reference Manual :

"Almost all digital pins are powered down (that is, high impedance)

or configured as GPIO input at reset, until reprogrammed. The only

exceptions are TEST PINS(TESTMODE, DEBUG, JTAG pins). These pins

are always active."

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Yuri
NXP Employee
NXP Employee

From section 8.1 (Pin Descriptions Overview) of the i.MX28 Reference Manual :

"Almost all digital pins are powered down (that is, high impedance)

or configured as GPIO input at reset, until reprogrammed. The only

exceptions are TEST PINS(TESTMODE, DEBUG, JTAG pins). These pins

are always active."

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