Ultrastar 7K2
HGST Hard Disk Drive
Technical Reference Manual
40
75 Queue Depth
Bit 15-5: Reserved
Bit 4-0: Maximum queue depth - 1
001Fh
76 Serial ATA Capabilities Bit 15-13: Reserved
Bit 12: If set, supports Native Command Queuing priority
information
Bit 11: If set, supports Unload while NCQ commands outstanding
Bit 10: If set, supports Phy event counters
Bit 9: If set, supports receipt of host-initiated interface power management requests
Bit 8: If set, supports Native Command Queuing (NCQ) Bit 7-3: Reserved for future
Serial ATA signaling speed grades
Bit 2: If set, supports Serial ATA Gen2 signaling speed (3 Gb/s)
Bit 1: If set, supports Serial ATA Gen1 signaling speed (1.5 Gb/s)
Bit 0: Shall be cleared to zero
9F0Eh
77 Serial ATA Additional Capabilities Bit 15-8: Reserved
Bit 7: If set, Supports DevSleep_to_ReducedPwrState
Bit 6: If set, Supports Supports RECEIVE FPDMA QUEUED and SEND FPDMA
QUEUED commands Bit 5: If set, Supports NCQ NON-DATA Command Bit 4: If
set, Supports NCQ Streaming
Bit 3-1: Coded value indicating current negotiated Serial ATA signal speed
Bit 0: Shall be cleared to zero
0004h
78 Serial ATA Features Supported
Bits 15-7: Reserved for Serial ATA
Bit 6: If set, device supports software settings preservation Bit 5: Reserved for Serial ATA
Bit 4: If set, device supports in-order data delivery
Bit 3: If set, device supports initiating power management Bit 2: If set, device supports
DMA Setup Auto-activation Bit 1: If set, device supports non-zero buffer offsets
Bit 0: Cleared to zero
004Ch
79 Serial ATA Features Enabled
Bits 15-7: Reserved for Serial ATA
Bit 6: If set, software settings preservation enabled Bit 5: Reserved for Serial ATA
Bit 4: If set, In-order data delivery enabled
Bit 3: If set, device initiated power management enabled Bit 2: If set, DMA Setup Auto-
activation enabled
Bit 1: If set, non-zero buffer offsets enabled Bit 0: Cleared to zero
0040h
80 Major Version Number Bits 15-10: Reserved
Bit 9: if set, supports ACS-2
Bit 8: if set, supports ATA8-ACS Bit 7: if set, supports ATA/ATAPI-7
Bit 6: if set, supports ATA/ATAPI-6 Bit 5: if set, supports
ATA/ATAPI-5 Bit 4 –1: Obsolete
Bit 0: Reserved
03FEh
81 Minor Version Number 001Fh
82 Command and feature sets supported
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 Feature Set supported Bit 9: If set, Device Reset
command supported
Bit 8: If set, Service interrupt supported Bit 7: If set, Release interrupt
supported Bit 6: If set, look-ahead supported
Bit 5: If set, Write Cache supported
Bit 4: Cleared to 0 to indicate that the PACKET feature set is not supported.
Bit 3: If set, mandatory Power Management Feature Set supported
Bit 2: Obsolete
Bit 1: If set, Security Feature Set supported Bit 0: If set, SMART Feature
Set supported
706Bh
83 Command Set Supported
Bit 15: Shall be cleared to 0 Bit 14: Shall be set to 1
Bit 13: If set, Flush Cache EXT command supported
Bit 12: If set, mandatory Flush Cache command supported Bit 11: If set, DCO feature set
supported
Bit 10: If set, 48-bit Address Feature Set supported Bit 9: Not supported
Bit 8: If set, Set Max Security Extension supported 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 supported Bit 4: Obsolete
Bit 3: If set, Advanced Power Management feature set supported
Bit 2: If set, CFA feature set supported
Bit 1: If set, Read/Write DMA Queued supported
Bit 0: If set, Download Microcode command supported
7469h
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