hsabaghianb @ kashanu.ac.ir Microprocessors 1-46
Z80 Pin Description
Reset (input, active Low).
RESET initializes the CPU as follows:
Resets the IFF
Clears the PC and registers I and R
Sets the interrupt status to Mode 0. During reset time, the address and data bus go to a high-impedance state And all control output signals go to the inactive
must be active for a minimum of three full clock cycles before the reset operation is complete.