Specifies an optional timeout at the I2C bus. The unit is approximately 0.7 ms. The default zero value specifies no timeout. A variable I2CwasTimeout is set when the I2C bus timeout occurs after calling DpaApiI2Cstart, DpaApiI2Cwrite, DpaApiI2Cread, DpaApiI2Cstop, DpaApiI2CwaitForACK and DpaApiI2CwaitForIdle.