I am currently working on a program that will test the I2C interface of the Philips LPC2129 uC using the Keil simulator. In my program, I try to intialize the "I2ADR," register with a value for my slave address, however I receive an error stating, "no write permission." This seems strange, since in the Philips LPC2129 User Manual it states that I2ADR should have read/write access. I receive similar errors when trying to write to the I2SCLH and I2SCLL registers. Do you have any suggestions?