Issue No.04 - October-December (1981 vol.1)
Mike Newman , Motorola, Inc.
David Smith , Motorola, Inc.
DMA data transfer makes this system faster than ones that are interrupt-driven or based on polling. DMA on the 6809 suits it to applications demanding high data rates.
Mike Newman, David Smith, "The MC6809 In DMA Mode on the IEEE-488 Bus", IEEE Micro, vol.1, no. 4, pp. 56-75, October-December 1981, doi:10.1109/MM.1981.290914