channel grant(CG)

In 8100, a signal from the processor granting the controllogic permission to start a previously requested channel I／O operation.The signal can be one of three priorities: channel grant low (CGlo), channel gr ant medium (CGmed), and channel grant high (CG-hi).; 在IBM的8100系统中,指来自处理机的信号,它授权控制逻辑使其启动事先请求的通道输入输 出操作。该信号可以是高、中、低三个通道优先级之一。