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PSoC™ 4 Forum Discussions

PIROB110
Level 1
Level 1
First question asked Welcome!

Is the PSOC 4 ( CY8C4045AZI-S413 ) I2C port only available in deep sleep mode ? 

Will I still be able to use it in active mode as well ? The GPIO pin mux only list the I2C ressources in the deep sleep state column . 

Thank you very much . Have a great day. 

 

Pierre 

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MaMi_1205306
Level 7
Level 7
500 replies posted 50 solutions authored 25 likes received

Pierre-san,

 

I2C works only in active mode,  does not work during DeepSleep mode but can be used as a wakeup resource.

 

/* PSoC 4000 Architecture TRM URL */

https://www.infineon.com/dgdl/Infineon-PSoC_4000S_Family_PSoC_4_Architecture_Technical_Reference_Man...

 

MaMi_1205306_0-1673401810471.png

Because IMO is stopped during active mode and it is running only with low frequency clock.

MaMi_1205306_1-1673401892473.png

As a wakeup resource, it shifts from DeepSleep mode to Active mode only when an I2C address match occurs.

 

Regards,

 

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