hello

i am using two 89c51s in a master slave environment.
the master and slave are in two different PCBs with a 10 wire serial interface (IEEE 1451 ).

i want the slave's clock signal to be generated and provided by the master. how do i do it? (the interface has a DCLK wire for clocking purpose).
do i have to use another crystal in the slave board?
or is there any other way around this?

please help me out
Arjun