| 摘要 |
PURPOSE:To recombine memory packs different in capacity, by comparing the address space of a memory pack set to an attaching and detaching mechanism with the address space at the preceding memory pack setting time and changing absolute addresses on a basis of the difference between them. CONSTITUTION:Data is read and written while adding every 1kB addresses to a RAM cardset to a connector part 18, thus checking the capacity. The last address indicating the memory capacity is inputted to a latch circuit 13, and the last address data of the memory in the preceding combination which is stored in a specific address of a RAM card 20 is inputted to a latch circuit 14. Differential data between two latch circuits is inputted to the latch circuit 13, and the absolute address storage area of a RAM card 20A is read out and is inputted to the latch circuit 14. Address data in the latch circuit 14 is corrected by differential data in the latch circuit 13, and the result is stored in a data buffer 16. |
