Data processor

Abstract

Abstract PURPOSE:To facilitate utilization of versatile programs other than programs inherent to the system by switching two microprocessors of different kinds. CONSTITUTION:When a switching instruction 1 is read out from a storage section 6 while a microprocessor 1 is in operation and interpreted in a controlling circuit 8, F/F4 changes from on-state to off-state. In response to the change of state of F/F4, the microprocessor 1 itself is stopped by indication from a controlling device 5. Drive of an address bus 3 is stopped and the use right of the bus is delivered to a microprocessor 2. On the other hand, the microprocessor 2 is changed from stop state to a state that permits execution of indication by indication from the controlling device 5 responding to change of state from on to off of the F/F4, and executes microinstructions successively.

Inventors

• 👤 Tetsuya Hamahira
• 👤 浜平　哲哉

Bibliographic Details