Western Digital Blue WD20SPZX Technical Reference Manual page 51

WORD FIELD DESCRIPTION
Physical sector size / logical sector
size
Bit 15: Shall be cleared to zero
Bit 14: Shall be set to one
Bit 13: If set, Device has multiple logi-
106
cal sectors per physical sector.
Bit 12: If set, Device Logical Sector
longer than 256 Words
Bits 11-4: Reserved
Bits 3-0: 2X logical sectors per physi-
cal sector
Inter-seek delay for ISO 7779 stan-
107
dard acoustic testing
108-111 World Wide Name
112-115 Reserved
116 Obsolete
117-118 Logical Sector size (DWord)
Commands and feature sets sup-
ported (Continued from words 82-
84)
Bit 15: Cleared to zero
Bit 14: Shall be set to one
Bit 13-10: Reserved
Bit 9: If set, DSN feature set enable
Bit 8: if set, Accessible Max Address
Configuration feature set supported
Bit 7: If set, Extended Power Condi-
tions feature set supported
119
Bit 6: If set, Sense Data Reporting
supported
Bit 5: If set, Free-fall Control feature
set supported
Bit 4: If set, DOWNLOAD MICRO-
CODE with offsets supported
Bit 3: If set, READ and WRITE DMA
EXT commands supported
Bit 2: If set, WRITE UNCORRECTABLE
EXT supported
Bit 1: If set, Write-Read-Verify feature
set supported
Bit 0: Obsolete
WESTERN DIGITAL CONFIDENTIAL
ATA Command Set
F=fixed
V=variable
X= not defined
F
F
F
F
F
F
F
X
F
F
F
F
F
F
F
F
F
F
F
F
F
X
- 51 -
Drive Program
Power-on Default Value
6003h
0000h
50014EE000000000h
0000h
0000h
0000h
4118h