| 摘要 |
PURPOSE:To simplify the conversion of a table address by making a deciding device perform the same action as a case where a physical memory address corresponding to a desired logical memory address in a logical memory address register is deviced that it is not stored in an addresss conversion buffer. CONSTITUTION:An error checking circuit 6 checks the errors of contents of an address conversion buffer memory 3 and an address register buffer memory 3. When an error is detected with the memory 2 or 3, an error detection signal 8 is sent to a deciding device 6 from the circuit 6. Receiving the signal 8, the deciding 9 sets an output signal 7 at a non-position level regardless of the corresponding information stored in the memory 3. Then the same action is carried out as a case the physical memory address information corresponding to a desired logical memory address stored in a logical memory address register 1 is decided that it is not stored in the memory 2. In such a way, the error retry processing which is done by a data processor is eliminated. |
