MICROPROCESSOR FOR DEVELOPMENT BACK-UP DEVICE

摘要

PURPOSE:To construct a development back-up device without increasing the delay by providing the timing signal to give an access to the resources of a user/system independently of the timing signal to give an access to the resources of a development back-up device/system. CONSTITUTION:A resources identification signal 205 is directly connected to the resources 204 of a user/system and the resources 203 of a development back-up device/system respectively. The timing signals include a timing signal 206 for the user/system and a timing signal 207 for the development back-up device/system. Thus no influence is produced even though the signal 205 is inputted as it is to give an access to the resources of the other system. As a result, no process is required to the output of a microprocessor when a development back-up device is constructed. Therefore the delay of an output signal is never increased.