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How to interface TUS3210 to Sim card ?

Joy Tan
Expert 1175 points

Hello,

May I know how do i interace TUSB3210 to Sim card?

Pls see attached. thanks.

Warmest regards,

Joy

  • 0
    TI__Genius 16130 points

    The TUSB3210 is a general purpose 8052 MCU with 32 GPIOs that can be are purposed by the application firmware. 

    How to implement a SIM interface is up to how you write your application firmware.

  • 0 in reply to DHarmon
    Expert 1175 points

    Dear Dharmon,

     

    Can you pls help to confirm is a sim card translator is require to communicate TUSB3210 to Sim card?

    Pls see the below connection between the baseband and Translator. In my case, the baseband refer to TUSB3210?

     We need three I/O pins of TUS3210 to generate three signals- RESET, CLK & I/O (DATA)?

    How software read the Sim data from USB? The software side need to know which register is defined

    as Sim card data storage?

     

  • 0 in reply to DHarmon
    Expert 1175 points

    Dear Dharmon,

    Can I check with is there any sample code to run the simluation for sim card interface....?

    Thanks,

    joy

  • 0 in reply to Joy Tan
    TI__Genius 16130 points

    The TUSB3210's GPIO signals are standard 3.3V while the SIM Card Inputs are at either 2.95 or 1.8.  You should be able to check the datasheet of the SIM Card of choice and compare it to the TUSB3210 Electrical caharcteristics in Table 3.3 on page 39 of the data sheet to determine if the level shifter is needed ot not.  It most like is needed, but you will need to determine this based on the SIM card itself.

  • 0 in reply to Joy Tan
    TI__Genius 16130 points

    No we do not - all of our sample cose is available for download.