公开(公告)号：US4059851A

公开(公告)日：1977-11-22

申请号：US704256

申请日：1976-07-12

申请人： Roy S. Nutter, Jr. ,  Jerry R. Washburn ,  John H. Verwys

发明人： Roy S. Nutter, Jr. ,  Jerry R. Washburn ,  John H. Verwys

IPC分类号： G06F9/46 ,  G06F13/34 ,  G06F13/362 ,  G06F13/37 ,  G06F9/18

CPC分类号： G06F13/34 ,  G06F13/37

摘要： A priority network utilizing a common bus coupled to a plurality of priority seeking peripheral devices wherein a processor or any number of processors is connected to the common bus. Each successive peripheral device is connected to the common bus in increasing priority order, such that each device will have a unique priority defined. Each peripheral device is provided with an associated peripheral control unit. Each of the peripheral control units is connected in serial fashion on an enabling line with the output of the higher priority control unit providing an enabling input to the next lowest priority peripheral control unit, such that the highest priority device requesting bus access prevents all lower priority devices from gaining access to the common bus until the higher priority device has completed its data transfer.

摘要翻译： 利用耦合到多个优先寻找外围设备的公共总线的优先网络，其中处理器或任何数量的处理器连接到公共总线。 每个连续的外围设备以增加的优先级顺序连接到公共总线，使得每个设备将具有定义的唯一优先级。 每个外围设备配备有相关的外围控制单元。 每个外围控制单元以串行方式连接在使能线上，较高优先级的控制单元的输出为下一个最低优先级的外围控制单元提供启用输入，使得请求总线访问的最高优先级设备防止所有较低优先级 设备无法访问公共总线，直到较高优先级的设备完成其数据传输。