hsabaghianb @ kashanu.ac.ir Microprocessors 1-22
The Control Bus: is another group of signals whose functions are to provide synchronization ( timing control ) between the MPU and the other system components.
Control signals are unidirectional, and are mainly outputs from the MPU.
Example Control signals
RD: read signal asserted to read data into MPU
WR: write signal asserted to write data from MPU