GENERATION DEVICE OF ADDRESS DATA

PURPOSE: To generate address data for accessing a memory from an optional selected memory position by counting the low-order and high-order bits of an address through first and second counters connected by an AND gate capable of respectively freely setting initial values. CONSTITUTION: The first counter 10 whose initial value is set by a first dip switch 30 counts clocks P1 and outputs the address low-order bits of four bits or the like. In the meantime, the second counter 20 whose initial value is similarly set counts carry signals outputted by the counter 10 through the AND gate 16 opened by a control circuit 50 every time the low-order bits by the counter 10 or a prescribed value is reached and counts and decides the address high- order bits of four bits or the like. By the constitution, the address data capable of accessing the memory 60 from a desired position corresponding to the initial set value of the counter are generated.