Thank you for the timely reply Biser. I was hoping the v2.1 I2C spec would apply as I would have a little more noise margin with the I2C device I'm interfacing to. The reason I thought the I2C spec might apply is because there's a statement on page 194 (section 6.6.11) of SPRS550E that says "The I2C interface is compliant with Philips I2C specification version 2.1."
Best Regards,
John M.