Western Digital Blue WD20SPZX Technical Reference Manual page 54

WORD FIELD DESCRIPTION
Transport major version number
0000h or FFFFh=device dose not
report version
Bit 15-12: Transport Type (0h=Parallel
1h=Serial 2h-Fh=Reserved)
Bit 11-7: Reserved (Parallel, Serial)
Bit: 6: Reserved SATA Rev 3.1
222
Bit 5: Reserved SATA Rev. 3.0
Bit 4: Reserved SATA Rev. 2.6
Bit 3: Reserved SATA Rev. 2.5
Bit 2: Reserved SATA II: Extensions
Bit 1: ATA/ATAPI-7 SATA 1.0a
Bit 0: ATA8-APT ATA8-AST
223 Transport minor version number
224-229 Reserved
Extended Number of User Address-
230-233
able Sectors (Qword)
Minimum number of 512-byte data
234 blocks per DOWNLOAD MICRO-
CODE command for mode 03h
Maximum number of 512-byte data
235 blocks per DOWNLOAD MICRO-
CODE command for mode 03h
236-254 Reserved
Integrity Word
Bit 15-8: Checksum
255
Bit 7-0: Checksum Validity Indicator
WESTERN DIGITAL CONFIDENTIAL
ATA Command Set
F=fixed
V=variable
X= not defined
- 54 -
Drive Program
Power-on Default Value
F
F
107Eh
F
F
F
F
F
F
F 0000h
0000h
V 88B0E8E000000000h
F 0001h
F 1000h
0000h
V
4EA5h