Hitachi HTS541680J9SA00 Specifications - Page 82

Identify Device ECh

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Travelstar 5K160 (SATA) Hard Disk Drive Specification 14.8 Identify Device (ECh) Command Block Output Registers Register 76543210 Data -------- Feature -------- Sector Count -------- LBA Low -------- LBA Mid -------- LBA High -------- Device -------- Command 11101100 Command Block Input Registers Register 76543210 Data -------- Error ...See Below... Sector Count -------- LBA Low -------- LBA Mid -------- LBA High -------- Device -------- Status ...See Below... Error Register 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AM N 000 0 0V0 0 Figure 33 Identify Device Command (ECh) Status Register 7 6543 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0V0 - - 0 0V The Identify Device command requests the device to transfer configuration information to the host. The device will transfer a sector to the host containing the information in "Identify device information" on Page 5-5. Word 00 01 02 03 04-05 06 07-09 Content 045xH Note.2 xxxxh Note.2 0 003FH 0 Description Drive classification, bit assignments: 15 (=0): 1=ATAPI device, 0=ATA device * 14 (=0): 1=format speed tolerance gap required * 13 (=0): 1=track offset option available * 12 (=0): 1=data strobe offset option available * 11 (=0): 1=rotational speed tolerance > 0.5% * 10 (=1): 1=disk transfer rate > 10 Mbps * 9 (=0): 1=disk transfer rate > 5 Mbps but

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Travelstar 5K160 (SATA) Hard Disk Drive Specification
82/167
14.8
Identify Device (ECh)
Command Block Output Registers
Command Block Input Registers
Register
7 6 5 4
3
2
1
0
Register
7 6 5 4 3 2
1
0
Data
-
-
-
-
-
-
-
-
Data
-
-
-
-
-
-
-
-
Feature
-
-
-
-
-
-
-
-
Error
...See Below...
Sector Count
-
-
-
-
-
-
-
-
Sector Count
-
-
-
-
-
-
-
-
LBA Low
-
-
-
-
-
-
-
-
LBA Low
-
-
-
-
-
-
-
-
LBA Mid
-
-
-
-
-
-
-
-
LBA Mid
-
-
-
-
-
-
-
-
LBA High
-
-
-
-
-
-
-
-
LBA High
-
-
-
-
-
-
-
-
Device
-
-
-
-
-
-
-
-
Device
-
-
-
-
-
-
-
-
Command
1 1 1 0
1
1
0
0
Status
...See Below...
Error Register
Status Register
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CRC UNC
0
IDN
0
ABT
T0N
AM
N
BSY
RDY
DF
DSC
DRQ COR
IDX
ERR
0
0
0
0
0
V
0
0
0
V
0
-
-
0
0
V
Figure 33 Identify Device Command (ECh)
The Identify Device command requests the device to transfer configuration information to the host.
The device will transfer a sector to the host containing the information in “Identify device
information” on
Page 5-5
.
Word
Content
Description
00
045xH
Drive classification, bit assignments:
15 (=0):
1=ATAPI device, 0=ATA device
*
14 (=0):
1=format speed tolerance gap required
*
13 (=0):
1=track offset option available
*
12 (=0):
1=data strobe offset option available
*
11 (=0):
1=rotational speed tolerance > 0.5%
*
10 (=1):
1=disk transfer rate > 10 Mbps
*
9 (=0):
1=disk transfer rate > 5 Mbps but <= 10 Mbps
*
8 (=0):
1=disk transfer rate <= 5 Mbps
7 (=0):
1=removable cartridge device
6 (=1):
1=fixed device
*
5 (=0):
1=spindle motor control option implemented
*
4 (=1):
1=head switch time > 15 us
*
3 (=1):
1=not MFM encoded
2 (=x):
1=Identify data incomplete
*
1 (=1):
1=hard sectored
0 (=0):
Reserved
01
Note.2
Number of cylinders in default translate mode
02
xxxxh
Specific configuration
C837h
SET FEATURES subcommand is not required to spin-up
and IDENTIFY DEVICE response is complete
37C8h
SET FEATURES subcommand is required to spin-up and
IDENTIFY DEVICE response is incomplete
03
Note.2
Number of heads in default translate mode
04-05
0
*
Reserved
06
003FH
Number of sectors per track in default translate mode
07-09
0
Reserved