channel control vector (CHCV)

In 8100, the formatted information that specifies the controlling parameters, such as the channel I／O command (write or read) and the channel pointer number; the CHCV is used during a channel I／O operation.; 在IBM的8100系統中,用來指定控制參數的格式化信息,如通道輸入輸出命令(寫／讀)和通道指針號; 在通道輸入輸出操作期間使用此向量。