ADuC7023 I2C Slave clock stretching


I am currently using the I2C of ADuC7023 as slave. As stated in page 60 of Rev G (link below), "Clock stretching can be enabled by other devices on the bus without causing any issues with the ADuC7023. However, the ADuC7023 cannot enable clock stretching." does this mean that ADuC7023 I2C slave is not capable of holding the clock for clock stretching? If it cannot, does it have an alternative function similar to clock stretching?