CONTROL MICROCOMPUTER FOR INCORPORATION AND DEVELOPMENT SUPPORTER FOR THE MICROCOMPUTER

摘要

PURPOSE: To provide the control microcomputer for incorporation which can directly grasp peripheral internal data. ;CONSTITUTION: An internal data output circuit 17 and an output timing control circuit 18 are connected to a bus line 11. Each time the internal data of a peripheral 16 are updated, the internal data are latched by the internal data output circuit 17, these internal data are set to the data bus of the bus line 11 under the control of the output timing control circuit 18, and a prescribed address value is set to the address bus of the bus line 11. The internal data of the peripheral 16 do not flow on the bus line 11 but facilitate the operation confirmation of the peripheral 16 by recognizing this change. Since it is detected by an ICE that the address value inside the microcomputer is turned to the prescribed address value and the value of the data bus at that time is fetched and displayed, the internal data of the peripheral 16 can be directly grasped, and efficient operation confirmation or problem analysis is enabled.;COPYRIGHT: (C)1993,JPO&Japio