Hi @selvarajasekar,
Inside the 'Peripherals' section of Config Tools, you can right click any module to access its documentation (User Manual):
You can also access the documentation through the specific driver module inside Design Studio's installation path: C:\nxp\S32DS.3.4\S32DS\software\PlatformSDK_S32K3_2022_03\SW32K3_RTD_4_4_2_0_0_D2203\I2c_TS_T40D34M20I0R0\doc
Inside the manual you can find driver usage and configuration tips for I2C APIs and definitions.
Best regards,
Julián