Hitachi HTS541040G9AT00 Specifications - Page 145

Description, Bytes, Offset

Page 145 highlights

Command data structure: Data format of each command data structure is shown below. Table 88: Command data structure Description Device Control register Features register (7:0) (see Note) Features register (15:8) Sector count register (7:0) Sector count register (15:8) Sector number register (7:0) Sector number register (15:8) Cylinder Low register (7:0) Cylinder Low register (15:8) Cylinder High register (7:0) Cylinder High register (15:8) Device/Head register Command register Reserved Timestamp (milliseconds from Power-on) Bytes Offset 1 00h 1 01h 1 02h 1 03h 1 04h 1 05h 1 06h 1 07h 1 08h 1 09h 1 0Ah 1 0Bh 1 0Ch 1 0Dh 4 0Eh 18 Note bits (7:0) refer to the most recently written contents of the register. Bits (15:8) refer to the contents of the register prior to the most recent write to the register. State shall contain a value indicating the state of the device when the command was issued to the device or the reset occurred as described below. Value State Value x0h x1h x2h x3h x4h x5h-xAh xBh-xFh State Unknown Sleep Standby Active/Idle SMART Off-line or Self-test Reserved Vendor specific Note: The value of x is vendor specific. Travelstar 5K100 Hard Disk Drive Specification 131

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Travelstar 5K100 Hard Disk Drive Specification
131
Command data structure:
Data format of each command data structure is shown below.
Table 88: Command data structure
Note bits (7:0) refer to the most recently written contents of the register. Bits (15:8) refer to the contents of the reg-
ister prior to the most recent write to the register.
State shall contain a value indicating the state of the device when the command was issued to the device or the reset
occurred as described below.
Value State
Note: The value of x is vendor specific.
Value
State
x0h
Unknown
x1h
Sleep
x2h
Standby
x3h
Active/Idle
x4h
SMART Off-line
or Self-test
x5h-xAh
Reserved
xBh-xFh
Vendor specific
Description
Bytes
Offset
Device Control register
1
00h
Features register (7:0)
(see Note)
1
01h
Features register (15:8)
1
02h
Sector count register (7:0)
1
03h
Sector count register (15:8)
1
04h
Sector number register (7:0)
1
05h
Sector number register (15:8)
1
06h
Cylinder Low register (7:0)
1
07h
Cylinder Low register (15:8)
1
08h
Cylinder High register (7:0)
1
09h
Cylinder High register (15:8)
1
0Ah
Device/Head register
1
0Bh
Command register
1
0Ch
Reserved
1
0Dh
Timestamp (milliseconds from Power-on)
4
0Eh
18