Table 122 Identify Device Information -Continued - Western Digital Ultrastar DC HC310 Specifications

Word Content
207-208 0000H
209 4000H
or
0000H
210-211 0000H
212-213 0000H
214 0000H
215-216 0000H
217 1C20H
or
1644H
or
1734H
218 0000H
219 0000H
220 0000H
221 0000H
222 10FFH
223 0021H
224-229 0000H
230-233 xxxxH
234 0008H
235 0000H
236-254 0000H
255 xxA5H

Table 122 Identify device information -Continued-

Description
Reserved
Alignment of logical blocks within a physical block (This word is valid if bit 13 of word
106 is set to one.)
15 Shall be cleared to zero
14 Shall be set to one
Logical sector offset within the first physical sector where the first logical
13-0
sector is placed
Write-Read-Verify Sector Count Mode 3 (Dword)
0000H=Not supported
Write-Read-Verify Sector Count Mode 2 (Dword)
0000H=Not supported
NV Cache Capabilities
0000H=Not supported
NV Cache Size in Logical Blocks (Dword)
Nominal media rotation rate (=7200rpm)
Reserved
NV Cache Options
0000H=Not supported
15-8 (=0) Reserved
7-0 (=0) Write-Read-Verify feature set current mode(not supported)
Reserved
Transport major version number
15-12 (=1) Transport Type (1= Serial)
11-8 (=0) Reserved
7 (=1) SATA Rev 3.2
6 (=1) SATA Rev 3.1
5 (=1) SATA Rev 3.0
4 (=1) SATA Rev 2.6
3 (=1) SATA Rev 2.5
2 (=1) SATA II: Extensions
1 (=1) SATA 1.0a
0 (=1) ATA8-AST
Transport minor version number (ATA8-AST T13 Project D1697 Revision 0b)
Reserved
Extended Number of User Addressable Sectors
Minimum number of 512-byte data blocks per DOWNLOAD MICROCODE command
for mode 3
Maximum number of 512-byte data blocks per DOWNLOAD MICROCODE command
for mode 3
Reserved
15-8 Checksum. This value is the two's complement of the sum of all bytes in
byte 0 through 510
7-0 (A5) Signature
Western Digital Hard Disk Drive OEM Specification
149