SHADOW REGISTER BLOCK
6.2Physical Interface
For information please consult the document entitled “Serial ATA: High Speed Serialized AT Attachment Revision 1.0a” released on February 4, 2003 available from the Internet http://www.serialata.org/ still retrievable on May 29, 2003. Section 6 of the document contains physical layer specifications related topics.
6.3Signal Summary
For details, please consult the document entitled “Serial ATA: High Speed Serialized AT Attachment
Revision 1.0a” released on February 4, 2003 and “Serial ATA II: Extensions to Serial ATA 1.0a Revision 1.2” released on September 30, 2004 available from http://www.serialata.org/ retrieved and available on Jan 6, 2005.
6.3.1Signal Descriptions
For data packets and additional information please consult the document entitled “Serial ATA: High Speed
Serialized AT Attachment Revision 1.0a” released on February 4, 2003 and “Serial ATA II: Extensions to Serial ATA 1.0a Revision 1.2” released on September 30, 2004 available from http://www.serialata.org/ retrieved and available on Jan 6, 2005.
A device can operate in either of two addressing modes, CHS or LBA, on a
This CHS term defines the addressing mode of the device as being by physical sector address. The physical sector address is made up of three fields: the sector number, the head number and the cylinder number. Sectors are numbered from 1 to a device specific maximum value, which cannot exceed 255. Heads are numbered from 0 to a device specific maximum value, which cannot exceed 15. Cylinders are numbered from 0 to a device specific maximum value, which cannot exceed 65,535. Typically, sequential access to the media is accomplished by treating the sector number as the least significant portion, the head number as the mid portion, and the cylinder number as the most significant portion of the CHS address.
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