| 摘要 |
PURPOSE:To simulate the logical operation of the custom LSI by several memory accesses, by rewriting the contents of the memory when the change of the custom LSI is required, and making the contents of a memory correspond to the change of a custom LSI. CONSTITUTION:Receiving the No.7 of the custom LSI, a functon specifying part 1 outputs the function No. to an function part 3, an input selecting part 5 and an output selecting part 6 successively. A status register 2 stores the status of an I/O pin of the custom LSI applied from a register 8 and also stores the output of the function part 3. When the function No. is applied from the function specifying part 1, the function part 3 outputs a function value corresponding to the data stored in an input register 4. The input data required for the execution of the function are applied from the function specifying part 1 and shifted from the status register 2 to the input register 4. |
