PATH Hardware Documentation > Device Managers and Drivers > ATA Devices > ATA Device Software Guide

Setting Up PIO Data Transfers

To set up PIO data transfers, the ATA Manager takes the values specified in the ataPIOSpeedMode and ataPIOCycleTime fields of the ATA_SetDevConfig parameter block to create a cycle time that approximates the specified cycle time and maintains the appropriate device signal timing requirements for the specified PIO transfer mode.

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