| 摘要 |
PURPOSE:To make it possible that each CPU shares each resource and uses it freely and efficiently, by providing a resource managing CPU independently. CONSTITUTION:Interfaces I/F1-I/Fn are interposed between individual operation processing devices CPU1-CPUn constituting a multi-CPU system and a private CPU (R-CPU) managing use conditions of m-number of resources RS1-RSm which are used commonly by respective CPUs. Each of these interfaces is provided with areas for an allocate flag and a release flag transmitted from each CPU to the R-CPU, areas for an enable flag and a dead lock flag transmitted from the R-CPU to each CPU, and a resource number register for an objective resource to which each CPU sets a number. Connection and release between each CPU and each resource are performed by individual interfaces and the R- CPU. |
