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TPS65982 I2C_ADDR Selection in Project TPS65982_appConfigGpio_2_10.tpi

Gim Song
Intellectual 1120 points
Other Parts Discussed in Thread: TPS65982

Hi,

In Configuration tool, project TPS65982_appConfiguGpio_2_10.tpl is selected.

On the “General Setting” Tab, under the “Configurations Data Sets”, why there are different options to choose from (See attached) in this project. How to choose them, and what will it affect the PD function? What is the reason 93.1Kohm and 156Kohm chosen in the default setting?

From the datasheet, these different resistance (8 values) gives I2C unique address. However, in TPS65982EVM, there is only 1 SPI flash which needs 0x00 under I2C Unique Address [3:1].

Can you help to explain?

Thanks.

  • 0
    TI__Genius 16370 points
    Gim,

    Please note the word 'Virtual' in that column header. These configuration sets do not have pin strapping because they do not correspond to the configuration of a physical device. Nonetheless, the configuration-set requires a unique identifier, and therefore, a 'Virtual Pin Strap Setting' is used to identify the configuration. The only requirement of the 5 bits selected for this virtual pin strapping is that the virtual” strapping used for the configuration-set shall not match the physical pin strapping of a physical device in the system, otherwise the configuration-set will conflict with the initialization parameters of that device.

    Let me know if you need additional details.

    -/Praneet
  • 0 in reply to Praneet Kumar
    TI__Intellectual 1120 points
    Hi Praneet,

    Thanks for the clarification.