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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
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
name
Register name in this
specification when
writing registers
specification when
writing registers
Register name in this
specification when
reading registers
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