AM3352: State of each pin in each power mode

O.H

Mastermind 6330 points

Part Number: AM3352

Hi experts,

Please let me confirm the state of each pin in each power mode.

Is my understanding correct as follows?

Stanby: Maintains the previous voltage level.
Deepsleep1: Maintains the previous voltage level.
Deepsleep0: Does not maintain the previous voltage level and goes to Hi-Z.

This information is referenced from the original thread and from "8.1.4.3 Power Modes" and "8.1.11 Device Modules and Power Management Attributes List" in TRM.

Best regards,
O.H

over 2 years ago

0 Colin Callaghan over 2 years ago

TI__Expert 8265 points

Hi O.H.,

I will look into this and follow up over the next day or two.

Regards,
Colin

0 O.H over 2 years ago in reply to Colin Callaghan

Mastermind 6330 points

Hello Colin,

Thank you for your follow up. I understood.

Best regards,
O.H

0 O.H over 2 years ago in reply to O.H

Mastermind 6330 points

Hello Colin,

Sorry for rush you. Is there any update?

My customer is looking for answers and would appreciate it if you could tell me status.

Best regards,
O.H

+1 Colin Callaghan over 2 years ago in reply to O.H

TI__Expert 8265 points

Hi O.H

O.H said:
Stanby: Maintains the previous voltage level.

Deepsleep1: Maintains the previous voltage level.

These are correct

O.H said:
Deepsleep0: Does not maintain the previous voltage level and goes to Hi-Z.

DeepSleep0 does not control the voltages. These parameters are configurable. Is the customer familiar with the Low Power Design Guide for AM335? https://www.ti.com/lit/an/sprac74a/sprac74a.pdf

Also relevant is the IO configuration wiki: https://processors.wiki.ti.com/index.php/Optimizing_AM335x_IO_Power_in_DeepSleep0

The spreadsheet from the wiki above should provide the details about IO pad config in DS0 that the customer is looking for:

http://processors.wiki.ti.com/images/2/24/AM335x_DS0_PadConf_Tool_v2.zip

Regards,

Colin

Regards,

Colin