DS90UB953A-Q1: DS90UB953 ,DS90UB954 ,initialized by a standalone I2C bus, is it workable?

Tiger Wang

Part Number: DS90UB953A-Q1

Dear Sir,

AP will use a standalone I2C to access UB954，UB953， and image sensor, all UB953,UB954 and image sensor are slave devices,

Is it workable？

Best regards

David

over 3 years ago

0 Jack Scherlag over 3 years ago

TI__Mastermind 34235 points

Hi David,

Standalone I2C for accessing the UB954, UB953, and the image sensor is possible. I am unsure what GPIO2 and GPIO0 are being configured for in the diagram you provided. Would you be able to expand on that?

Regards,

Jack

0 Tiger Wang over 3 years ago in reply to Jack Scherlag

Expert 1625 points

GPIs on UB953 side, for example, buttons, can be mapping to GPOs on UB954 side, so , AP can read button status by GPOs of UB954. all above are workable at standard design, but is it workable at a standalone I2C bus scenario?

and further, GPIOs of UB954 can be configured as a lot of functions(snapshot), all these are workable at a standalone I2C design?

0 Jack Scherlag over 3 years ago in reply to Tiger Wang

TI__Mastermind 34235 points

Hi David,

Thank you for the clarification. This design is workable for standalone I2C. The 953 and 954 can be connected via a common I2C bus.

Regards,

Jack

Interface

Interface forum

DS90UB953A-Q1: DS90UB953 ,DS90UB954 ,initialized by a standalone I2C bus, is it workable?