SMBus timeout in I2C timing specification table means
If the SCLK keeps low for longer than timeout.min, the interface will start to reset,
If the SCLK keeps low for longer than timeout.max, the I2C interface will finish the reset.
After the I2C interface reset, customer can restart the talk with our timing products Si534x/7x/8x/9x.
It is better to not have interrupt if you are talking with slave timing products, if not, please make sure the interrupt last time less than 25ms(Timeout.min).