bus mastering

--- The

SCSI drives also use bus mastering as IDEs
Another doubt. As the IDE controller on the motherboard usually comes,
these on board controllers use the PCI bus or have a special track for
chipset I ask this because in the off-board controllers that use the PCI slot
obviously use the PCI bus.
The controllers can not have ISA bus mastering feature, is not it Oh
one more question: When using the HD uses bus mastering DMA and IRQ