TPS65987D: I2C usage

Antony Lin

Part Number: TPS65987D
Other Parts Discussed in Thread: TPS65987

Hi,
Customer is using TPS65987DDH on their WhiskeyLake laptop project. To support PD SPI FW update from Windows, is it ok to connect TPS65987 I2C1 (instead of I2C2) to PCH. They want to know if we can support Windows version of WIN10 RS5 (or above)? Please share your inputs.

Thanks!
Antony

over 6 years ago

0 Eric Beljaars over 6 years ago

TI__Mastermind 36756 points

Hi Antony,

It is recommended to connect I2C1 to the EC or PCH and I2C2 to the TBT controller. The I2C address on I2C2 is set to the correct address for the TBT controller. The TBT controller will not look for the I2C1 address.

Thank you,
Eric

0 Antony Lin over 6 years ago in reply to Eric Beljaars

TI__Genius 13480 points

Hi Eric,

Does it matter to connect I2C2 to EC and I2C1 to PCH if TBT is not supported on this system?

Antony

0 Eric Beljaars over 6 years ago in reply to Antony Lin

TI__Mastermind 36756 points

Hi Antony,

As long as the PCH can support the I2C1 address then it should be okay.

Thank you,
Eric

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TPS65987D: I2C usage