Pad Conf State in DS0

Micheal Donohue

Hi,

I'm currently trying to optimize my padconf for DeepSleep0 using the excel sheet found here

I just want to make sure that I am going about it correctly. Should I be changing the pad direction to match the direction in column Q (DeepSleep Pad State)? For example lcd_data23 in sleep mode should change from an output to an input?

Thanks

Micheal

over 10 years ago

0 Biser Gatchev-XID over 10 years ago

TI__Guru**** 393215 points

This is quite normal. Changing the pin to input will greatly reduce current consumption on this pin.

0 Micheal Donohue over 10 years ago in reply to Biser Gatchev-XID

Prodigy 150 points

Hi Biser,

Thanks for the quick reply. Some Pins which I would have been setting as inputs before I found this spreadsheet have the state given as OUTPUT_LOW. I assume I would then leave these as outputs (lcd_hsync would be an example) ?

Thanks
Micheal

0 Biser Gatchev-XID over 10 years ago in reply to Micheal Donohue

TI__Guru**** 393215 points

You could try both and measure if there is any difference in consumption. Wouldn't do any harm.

0 Brad Griffis over 10 years ago

TI__Guru*** 125430 points

Micheal Donohue said:

I just want to make sure that I am going about it correctly. Should I be changing the pad direction to match the direction in column Q (DeepSleep Pad State)? For example lcd_data23 in sleep mode should change from an output to an input?

Column Q is just information. You cannot control that. By "input" we just mean "High-Z". Column T is where we recommend a state for you to program.

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Pad Conf State in DS0