Data processor with interrupt control - allows interruption of central processing unit in response to direct memory access command

摘要

The data processor has a main memory (300) holding the data processing information, a central processing unit (101) and an interrupt control (102) for the latter. The control (102) responds to an interrupt command supplied by a direct memory access control (103) for the main memory (300). Pref. a selection circuit (104) has a logic device receiving signals from a serial communication control (106) and allowing transfer of the READY signals, the direct memory access commands and the interrupt commands. ADVANTAGE - Effective utilisation of processing hardward.