IBM Aptiva E40/E24 (250-0467/8) DMA Channel Assignments Faxback Doc. # 40478 This table shows the channel assignments for direct memory access (DMA). DMA allows I/O devices to transfer data directly to and from memory. You may need to select an open DMA channel if you add an I/O device that uses DMA. DMA Channel Assignment 0 Audio 1 Audio 2 Diskette 3 Audio/ECP 4 Cascade 5 Available 6 Available 7 Available (km/BKL-07/17/97)