Does 8085 microprocessor have serial input output control?

With tricky programming it is possible to do 9600baud serial coms on an 8085 running at 2meg clock. you can detect the start of a serial comunication using

the 7.5 interupt. This is a software uart.

At 9600baud the bits are 104 microseconds long. and the 7.5 interrupt

push takes 55 microseconds so your code starts executing half way thru

the start bit . Your code has to be written very carefully accounting

for machine cycles to read the state of the SID pin every 104 microseconds

till you have read in a byte and stored it. then you reset the interrupt ready to collect the next byte, after the stop bits or if its comming from something else eg. a PC some time in the future.

I've used it to send and recieve 10 byte packets, take about 10milliseconds