| 摘要 |
A data processing system including processing elements (22) and a central memory (10) has an input/output system for handling high data flow rates comprising an I/O processor (23) providing serial lines (31) to a plurality of peripheral subsystems (30), the I/O processor comprising a dynamic channel exchange coupling the serial lines to at least one serial channel processor (20). Processor (20) includes arithmetic logic means, a scratch-pad, a buffer for data transfer between the dynamic channel exchange and the central memory, and a control store having a plurality of routines for implementing a method of communication between the I/O processor and the peripheral subsystems. The method of communication involving polling the ith serial channel for a peripheral ready indication, establishing a message exchange for communication if a peripheral ready indication is detected, checking for a processor element request for communication with a peripheral subsystem, and providing a message exchange for an initial communication across the corresponding bit line to the peripheral subsystem. |
