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ATA Command Set
WORD
85
86
87
88
36
FIELD DESCRIPTION
Commands and feature sets supported
Bit 15: Obsolete
Bit 14: If set, NOP command supported
Bit 13: If set, READ BUFFER command supported
Bit 12: If set, WRITE BUFFER command supported
Bit 11: Obsolete
Bit 10: If set, Host Protected Area has been established
Bit 9: If set, DEVICE RESET command supported
Bit 8: If set, SERVICE interrupt enabled
Bit 7: If set, release interrupt enabled
Bit 6: If set, read look-ahead enabled
Bit 5: If set, write cache enabled
Bit 4: Shall be cleared to zero to indicate that the PACKET
feature set is not supported.
Bit 3: If set, Power Management feature set enabled
Bit 2: Obsolete
Bit 1: If set, Security Mode feature set enabled
Bit 0: If set, SMART feature set enabled
Commands and feature sets supported
Bit 15: If set, Words 119-120 are valid
Bit 14: Reserved
Bit 13: If set, FLUSH CACHE EXT command supported
Bit 12: If set, FLUSH CACHE command supported
Bit 11: If set, Device Configuration Overlay supported
Bit 10: If set, 48-bit Address features set supported
Bit 9: If set, Automatic Acoustic Management feature set
enabled
Bit 8: If set, SET MAX security extension enabled by SET MAX
SET PASSWORD
Bit 7: Reserved
Bit 6: If set, SET FEATURES subcommand required to spin-
up after power-up
Bit 5: If set, Power-Up In Standby feature set enabled
Bit 4: Obsolete
Bit 3: If set, Advanced Power Management feature set enabled
Bit 2: If set, CFA feature set supported
Bit 1: If set, READ/WRITE DMA QUEUED command
supported
Bit 0: If set, DOWNLOAD MICROCODE command supported
Commands and feature sets supported
Bit 15: Shall be cleared to zero
Bit 14: Shall be set to one
Bit 13: If set, IDLE IMMEDIATE with UNLOAD FEATURE
supported
Bit 12-11: Reserved
Bit 10-9: Obsolete
Bit 8: If set, 64 bit World wide name supported
Bit 7: If set, WRITE DMA QUEUED FUA EXT command
supported
Bit 6: If set, WRITE DMA FUA EXT and WRITE MULTIPLE
FUA EXT commands supported
Bit 5: If set, General Purpose Logging feature set supported
Bit 4: Obsolete
Bit 3: If set, Media Card Pass Through Command feature set
supported
Bit 2: If set, Media serial number is valid
Bit 1: If set, SMART self-test supported
Bit 0: If set, SMART error logging supported
Ultra DMA modes
Bit 14: If set, Ultra DMA Mode 6 is selected
Bit 13: If set, Ultra DMA Mode 5 is selected
Bit 12: If set, Ultra DMA Mode 4 is selected
Bit 11: If set, Ultra DMA Mode 3 is selected
Bit 10: If set, Ultra DMA Mode 2 is selected
Bit 9: If set, Ultra DMA Mode 1 is selected
Bit 8: If set, Ultra DMA Mode 0 is selected
Bit 7: Reserved
Bit 6: Ultra DMA mode 6 and below are supported
Bit 5: Ultra DMA mode 5 and below are supported
Bit 4: Ultra DMA mode 4 and below are supported
Bit 3: Ultra DMA mode 3 and below are supported
Bit 2: Ultra DMA mode 2 and below are supported
Bit 1: Ultra DMA mode 1 and below are supported
Bit 0: Ultra DMA mode 0 supported
RELEASED 10/21/10 (WD CONFIDENTIAL)
XL500S
VALUE
01110X0XXXX010XXb
101111XX01X0X001b
0100000100100011b
XX7Fh
2679-701211-A06
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