Each ACE includes a programmable baud rate generator capable of dividing a reference clock with divisors from 1 to 65535, thus producing a 16 internal reference clock for the transmitter and receiver logic. Each ACE accommodates up to a 1.5-Mbaud serial data rate (24-MHz input clock). As a reference point, that speed would generate a 667-ns bit time and a 6.7-µs character time (for 8,N,1 serial data), with the internal clock running at 24 MHz.