| 摘要 |
PURPOSE: To provide the emulator with which memory access is enabled in the real operation of a user program even with an evaluation chip corresponding to a high-speed microcomputer by providing a parallel access function corresponding to the high-speed control of a memory. CONSTITUTION: This emulator is composed of the evaluation chip equipped with a /PREQ signal 8 and a /PACK signal 9 as signals for synchronization at the time of parallel access and a parallel access control part 18, to which a host CPU can perform access, or the like and this parallel access control part 18 is provided with a parallel access operation control part 23 for performing the synchronization with the evaluation chip corresponding to the /PREQ signal 8 and /PACK signal 9 based on the information transferred from a system bus interface 19 and for performing control to report the timing of parallel access start to the memory and an emulation memory interface control part 20 by making a /START signal 22 active. |
