Hitachi HTS725050A9A364 Datasheet download pdf (Page 47)

7K500 OEM Specification

Page 47 of 176

11.1

11.111.1

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

specification when writing

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

11.2

11.211.2

11.2 Command register

Command register Command register

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 73.

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

11.3

11.311.3

11.3 Device Control Register

Device Control Register Device Control Register

Device Control Register

7 6 5 4 3 2 1 0

- - - - 1 SRST -IEN 0

Table 25 Device Control Register

Bit Definitions

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 175 176

Comments to this Manuals

No comments

Hitachi HTS725050A9A364 Datasheet Page 47

Comments to this Manuals

Related products and manuals for Internal hard drives Hitachi HTS725050A9A364