Hitachi travelstar hds723020bla642 ユーザーズマニュアル

7K200 SATA OEM Specification

81/173

Word Content

0 0002h

Data

Structure

revision

Multiword DMA modes supported

15-3 Reserved

2 1 = Multiword DMA mode 2 and below are supported

1 1 = Multiword DMA mode 1 and below are supported

0 1 = Multiword DMA mode 0 is supported

Ultra DMA modes supported

15-6 Reserved

5 1 = Ultra DMA mode 5 and below are supported

4 1 = Ultra DMA mode 4 and below are supported

3 1 = Ultra DMA mode 3 and below are supported

2 1 = Ultra DMA mode 2 and below are supported

1 1 = Ultra DMA mode 1 and below are supported

0 1 = Ultra DMA mode 0 is supported

3-6

Maximum LBA address

Command set/feature set supported

15-9 Reserved

8 1 = 48-bit Addressing feature set supported

7 1 = Host Protected Area feature set supported

6 1 = Automatic acoustic management supported

5 Reserved

4 1 = Power-Up in Standby feature set supported

3 1 = Security feature set supported

2 1 = SMART error log supported

1 1 = SMART self-test supported

0 1 = SMART feature set supported

8 SATA

feature

15-5

Reserved

4 1 = Software setting preservation supported

Reserved

2 1 = Interface power management supported

1 1 = Non-zero buffer offset in DMA Setup FIS supported

0 1 = Native command queuing supported

9-254 Reserved

255

Integrity word <Note .>

15-8

Checksum

7-0

Signature (A5h)

Table 46 Device Configuration Overlay Data structure

Note.
Bits 7:0 of this word contain the value A5h. Bits 15:8 of this word contain the data structure

checksum. The data structure checksum is the two’s complement of the sum of all byte in words 0
through 254 and the byte consisting of bits 7:0 of word 255. Each byte is added with unsigned

arithmetic, and overflow is ignored. The sum of all bytes is zero when the checksum is correct.