Set Features (Efh); Table 94: Set Features (Efh) - Hitachi HTS541010G9AT00 - Travelstar 100 GB Hard Drive Specifications

12.33 Set Features (EFh)

Table 94: Set Features (EFh)

Command Block Output Registers
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
Error Register
7 6 5
CRC UNC 0
0 0 0
The Set Feature command establishes the following parameters which affect the execution of certain features as
shown in the table below.
ABT will be set to 1 in the Error Register if the Feature register contains any undefined values.
After the power on reset or hard reset the device is set to the following features as default.
Write cache
ECC bytes
Read look-ahead
Reverting to power on defaults
Address Offset mode
Device-initiated interface power
state transition
Software setting preservation
Output parameters to the device
Feature Destination code for this command
02H Enable write cache (See note 2)
Set transfer mode based on value in sector count register
03H
05H Enable Advanced Power Management
06H Enable Power-Up in Standby feature set
07H Power-Up in Standby feature set device spin-up
10H Enable use of Serial ATA feature
42H Enable Automatic Acoustic Management feature set
44H 51 bytes of ECC apply on Read Long/Write Long commands
55H Disable read look-ahead feature
7 6 5 4 3 2 1 0
- - - - - - - -
V V V V V V V V
see note 1
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 - - - - -
1 1 1 0 1 1 1 1
4 3 2 1
IDN 0 ABT T0N AMN
0 0 V 0
Enable
4 bytes
Enable
Disable
Disable
Disable
Enable
Travelstar 5K100 (Serial ATA) Hard Disk Drive Specification
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
0 7 6 5
BSY RDY DF DSC DRQ
0 0 V 0
137
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
Status Register
4 3 2 1
COR IDX
- - 0 -
0
ERR
V