DS90UB941AS-Q1: control method of Pull down value in GPIOx port, when GPIO input setting

Minwoo Song

Part Number: DS90UB941AS-Q1

Hi,

I have a question for PD value of GPIO input in TI 941.

if I use "HGPIO1 (18 pin)" port with "input port", I know that this GPIO port has internal PD value.

q1) What is the default value of default PD ?

q2) Can I control this PD to other value, by register setting ?

Thanks

0 Michael.Walker over 4 years ago

Hi,

Can you clarify your question? Which pin do you mean by "HGPIO1 (18 pin)"? do you mean GPIO1 or do you mean MODE_SEL0(pin 18) ?

Regards,

Michael W.

0 aiden kim over 4 years ago in reply to Michael.Walker

Hi, Michael,

Sorry for the typo of Part number and pin number.

He means the "GPIO1 (pin 8)" of DS90UB941AS-Q1.

Thank,

Jaewook.

0 Michael.Walker over 4 years ago in reply to aiden kim

Hi,

The internal pull down value is 25K but the pull down can be disabled through the "GPIO_0_Config Register" by setting the pin in Tri-state mode.

Regards,

Michael W.

0 Minwoo Song over 4 years ago in reply to Michael.Walker

Hi Michael W.

Thanks for your support.

I will check 'tri-state' mode for this.

Regards,

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