Identify Device (Ech); Table 4-7 Identify Device Command - Western Digital Purple PR1000M Technical Reference Manual

PR1000M
4.3

Identify Device (ECh)

The Identify Device command transfers 512 bytes of data that specify the drive's
parameters. Table 4-7 lists the parameters read by the host
Table 4-7. Identify Device Command
WORD
0
1
2
3
4-5
6
7-8
9
10-19
20-21
22
23-26
27-46
47
48
49
2679-800020-A03
FIELD DESCRIPTION
General Configuration
Obsolete
Specific Configuration
Obsolete
Retired
Obsolete
Reserved for assignment by the CompactFlash™
Association
Retired
Serial Number (ATA String)
Retired
Obsolete
Firmware Revision (ATA String)
Model Numbers (ATA String)
READ/WRITE MULTIPLE support
Bit 15-8: 80h
Bit 7-0: 00h: Reserved
01h-FFh = Maximum number of logical sectors that shall be
transferred per DRQ data block on READ/WRITE
MULTIPLE commands
Trusted Computing feature set options
Bit 15: Shall be cleared to zero
Bit 14: Shall be set to one
Bit 13-1: Reserved for the Trusted Computing Group
Bit 0: If set, Trusted Computing feature set is supported
Capabilities
Bit 15-14: Reserved for the IDENTIFY PACKET DEVICE
command.
Bit 13: If set, Standby timer values as specified in this
standard are supported.
0 = Standby timer values shall be managed by the device
Bit 12: Reserved for the IDENTIFY PACKET DEVICE
command
Bit 11: If set, IORDY supported
Bit 10: If set, IORDY may be disabled
Bit 9: If set, LBA supported
Bit 8: If set, DMA supported
Bit 7-2: Reserved
Bit 1: Current Long Physical Alignment Setting
RELEASED 5/8/17 (WD CONFIDENTIAL)
ATA C
OMMAND
VALUE
427A
H
0
XXXX
0
0
0
0
0
WD
NNNNNNNN
0
0
NNNN
"WDC WD30PURX-
NNN-
"
NNN
"WDC WD20PURX-
NNN-
"
NNN
"WDC WD30PURZ-NNN-
NNN"
"WDC WD20PURZ-NNN-
NNN
"WDC WD30EVRX-NNN-
NNN"
"WDC WD20EVRX-NNN-
NNN
8010
H
0
2F00
H
S
ET
31