Hitachi HTS543216L9A300 Register naming convention, Command register, Device Control Register

5K320 SATA OEM Specification

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

Features

Features (exp)

Sector count

Sector count (exp)

LBA low

LBA low (exp)

LBA mid

LBA mid (exp)

LBA high

LBA high (exp)

Device

Command

Control

Status

Error

Register name in this specification when writing registers

Feature current

Feature previous

Sector count current

Sector count previous

LBA low current

LBA low previous

LBA mid current

LBA mid previous

LBA high current

LBA high previous

Device

Command

Device Control

N/A

N/A

Register name in this specification when reading registers

Sector count HOB=0

Sector count HOB=1

LBA low HOB=0

LBA low HOB=1

LBA mid HOB=0

LBA mid HOB=1

LBA mid HOB=0

LBA mid HOB=1

Device

N/A

N/A

Status

Error

Table 24 Register naming convention and correspondence

11.2 Command register

This register contains the command code being sent to the device. Command execution begins immediately after this register is written. The command set is shown in “Table 40 Command set” on page 75.

All other registers required for the command must be set up before writing the Command Register.

11.3 Device Control Register

Device Control Register

7

-

6

-

5

-

4

-

3

1

2

SRST

1

-IEN

0

0

Table 25 Device Control Register

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