WD Scorpio MX375M
AT Command Set
2679-771293-A01
RELEASED 11/17/10 (WD CONFIDENTIAL)
33
62
Obsolete
0
63
Multi-Word DMA Transfer Mode Supported
Bit 10: If set, Multiword DMA mode 2 is selected
Bit 9: If set, Multiword DMA mode 1 is selected
Bit 8: If set, Multiword DMA mode 0 is selected
Bit 0-2: If set, Multiword DMA mode 2 and below are
supported
XX07h
64
Advanced PIO Modes Supported
Bits 0-7: PIO Modes supported
0003h
65
Min. Multi-Word DMA Transfer Cycle Time (ns)
120
66
Manufacturer Recommended Multi-Word DMA Cycle Time
(ns)
120
67
Min. PIO Transfer Cycle Time without flow control (ns)
120
68
Min. PIO Transfer Cycle Time with IORDY flow control (ns)
120
69-74
Reserved
0
75
Queue Depth
Bit 4-0: Maximum queue depth - 1
31
76
Serial ATA Capabilities
Bit 15-13: Reserved
Bit 12: Supports Native Command Queuing priority
information
Bit 11: Supports Unload while NCQ commands
outstanding
Bit 10: Supports Phy event counters
Bit 9: Supports receipt of host-initiated interface power
management requests
Bit 8: Supports Native Command Queuing (NCQ)
Bit 7-3: Reserved for future Serial ATA signaling speed
grades
Bit 2: 1= Supports Serial ATA Gen2 signaling speed
(3 Gb/s)
Bit 1: 1= Supports Serial ATA Gen1 signaling speed
(1.5 Gb/s)
Bit 0: Shall be cleared to zero
0001 1111 0000 0110b
1F06h
77
Reserved for Serial ATA
0000
78
Serial ATA Features Supported
Bit 7-15: 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
0000 0000 010 0 1100b
79
Serial ATA Features Enabled
Bits 7-15: 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
0000 0000 0X0X XXX0b
80
Major Version Number
ATA-8 and below supported
01FEh
81
Minor Version Number
0
WORD
FIELD DESCRIPTION
VALUE
