7K200 SATA OEM Specification
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11.1 Register naming convention
This specification uses the same naming conventions for the Command Block Registers as the
ATA8-ACS standard. However, the register naming convention is different from that uses in the
Serial ATA 2.6 specification. The following table defines the corresponding of the register names
used in this specification with those used in the Serial ATA 2.6 specification.
Serial ATA register
name
Register name in this
specification when
writing registers
Register name in this
specification when
reading registers
Features Feature current
Features (exp) Feature previous
Sector count Sector count current Sector count HOB=0
Sector count (exp) Sector count previous Sector count HOB=1
LBA low LBA low current LBA low HOB=0
LBA low (exp) LBA low previous LBA low HOB=1
LBA mid LBA mid current LBA mid HOB=0
LBA mid (exp) LBA mid previous LBA mid HOB=1
LBA high LBA high current LBA mid HOB=0
LBA high (exp) LBA high previous LBA mid HOB=1
Device Device Device
Command Command N/A
Control Device Control N/A
Status N/A Status
Error N/A Error
Table 24 Register naming convention and correspondence
