System and method for data transfer using ATA interface

摘要

An Advanced Technology Attachment or AT Attachment (ATA) compatible data transfer system includes a system processor having system memory, the system processor configured to issue a programmed input/output (PIO) type command to effect data transfer between a peripheral device and the system memory through a host controller and an ATA controller. The host controller accesses data to/from the system memory directly. The host controller and the ATA controller complete data transfer between the peripheral device and the system memory by executing the PIO type command without requiring interrupt servicing by the system processor.