| 摘要 |
PURPOSE:To extend a TLB without complicating the control nor increasing the scale of an information processor by actuating independently an address converting part or a data access part according to a virtual address or a physical address. CONSTITUTION:A virtual address is produced at a data processing part 20 and sent to a TLB 10 via an address bus 22 for a data access. It is confirmed whether a pair of addresses corresponding to each other are held or not in the TLB 10. When a hit occurs in the TLB 10, the corresponding physical address is sent back to the part 20. While the virtual address is delivered to an internal address bus 50 by the TLB 10 in the case of a mishit. A bus access part in a bus control part 40 gives an access to a memory 70 after confirming the output of the physical address. A memory control part in the part 40 obtains the address conversion information from the memory 70 to load it into the TLB 10 after confirming the output of the virtual address.
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