LYCOS RETRIEVER 
Serial: Drivers
built 266 days ago
The Serial ATA specifications do not define a full standard hardware register interface for Serial ATA drivers. Without a standard interface, Serial ATA controller manufacturers are tasked with the redundant work of creating their own proprietary interfaces. The result of this is the possibility of many different Serial ATA interfaces and the inability for Microsoft to create a driver that works commonly over all Serial ATA controllers.
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The Next Generation of serial data may rest with CAN in something called a Local Area Network (LAN). The idea is to have a multiple speed bus of low, medium and fast. The low speed would be for items of driver input (Air Conditioning and Power options like windows and door locks). Medium speed for entertainment and comfort things like remote CD players and DVD players that are out now for 2002. High speed will be for real time items like desired torque and ABS. But this technology will be a while in coming.
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The Emulating Parallel ATA mode defines a transfer level equivalent of parallel ATA for Serial ATA controllers. In this mode, a Serial ATA controller can emulate master-only (device 0) parallel ATA or shared channel parallel ATA. In master-only parallel ATA emulation, the Serial ATA controller presents itself to the computer as a parallel ATA controller with only a single master storage device attached to a channel. In shared channel parallel ATA emulation, the controller uses two Serial ATA channels, each only attach to a single storage device, as a single parallel channel attaching two storage devices. Both forms of emulation work with Serial ATA controllers that use Windows parallel ATA (atapi.sys) drivers.
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