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DS90UB953A-Q1: I2C slave for DS90UB953A

Shmuel Iliaich

Intellectual 310 points

Part Number: DS90UB953A-Q1

Hi,

I'm using the DS90UB953A.

Can it work as I2C slave or it's only I2C master.

BR

Shmuel

over 1 year ago

0 Hamzeh Jaradat over 1 year ago

TI__Guru* 83890 points

Hello Shmuel,

This depends on your use case. If your I2C Master is connected at the DES side and you are communicating with the SER over the Back Channel and using this communication to communicate and configure the other slaves on the SER side, then the SER always works as Master in this case. If you have another Master at the same I2C Bus, then this master must support Multi-Master arbitration.

0 Shmuel Iliaich over 1 year ago in reply to Hamzeh Jaradat

Intellectual 310 points

Hi Hamzeh,

If I'm not working with SER as a back channel, is it works as I2C slave?

BR

Shmurl

0 Hamzeh Jaradat over 1 year ago in reply to Shmuel Iliaich

TI__Guru* 83890 points

Do you mean your I2C Master is attached to the SER? i.e. on the same I2C bus?
In this configuration, the SER acts as a slave on the local I2C bus

0 Shmuel Iliaich over 1 year ago in reply to Hamzeh Jaradat

Intellectual 310 points

Hi,

I mean that I have a controller with master I2C connect to 953.

Can the controller control the 953? Is this connection is valid?

BR

Shmuel

+1 Hamzeh Jaradat over 1 year ago in reply to Shmuel Iliaich

TI__Guru* 83890 points

As I said, If the I2C Master is attached to the SER, then the SER acts as a slave on the local I2C bus