Fujitsu MHY2100BS, MHY2160BS, MHY2200BS, MHY2120BS, MHY2040BS, MHY2080BS manual Serial ATA Functions

Interface

*3) Serial ATA Functions

The host can enable and disable the following Serial ATA functions by issuing this command after setting X '10/90' in the Features field and an applicable value in the Sector Count field:

Serial ATA function	Sector Count field
Non-zero buffer offset in DMA Setup FIS	01h (*1)
DMA Setup FIS Auto-Activate optimization	02h (*2)
Device-initiated interface power state Transitions	03h (*3)
Guaranteed In-Order Data Delivery	04h (*1)
Asynchronous Notification	05h (*1)
Software Settings Preservation	06h (*4)

*1 The device normally responds to the command but performs no operation.

*2 This feature is disabled when power is on. While this function is enabled, the device does not return the DMA Activate FIS for the first data sector after the WRITE FP DMA QUEUED command is issued.

*3 This feature is disabled when power is on. While this function is enabled, the device perform interface power save.

*4: This feature is enabled when power is on. While this function is enabled, the device preserves the software settings across COMRESET.

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