IBM IC35L020 - Deskstar 20 GB Hard Drive Specifications page 163

The Set Feature command is to establish the following parameters which affect the execution of certain
features as shown in the following table.
ABT will be set to 1 in the Error Register if the Feature register contains any undefined values.
Command feature
Enable write cache
Set transfer mode based on value in
sector count register
Enable Advanced Power Management
Enable Power-up in Standby feature set
Power-up in Standby feature set device
spin-up
Enable Address Offset mode
Enable Automatic Acoustic
Management
40 bytes of ECC apply on Read
Long/Write Long commands
Disable read look-ahead feature
Enable release interrupt
Disable reverting to power on defaults
Disable write cache
Disable Advanced Power Management
Disable Power-up in Standby mode
Disable Address Offset mode
Enable read look-ahead feature
4 bytes of ECC apply on Read
Long/Write Long commands
Disable Automatic Acoustic
Management
Enable reverting to power on defaults
Disable release interrupt
Note: After a power on reset of hard reset the device is set to the following features as default:
Write cache
ECC bytes
Read look-ahead
Reverting to power on defaults
Release interrupt
Figure Output parameters to the device
110.
Deskstar 60 GXP Hard disk drive specification
149
Destination code for this command
02H
03H
05H
06H
07H
09H
42H
44H
55H
5DH
66H
82H
85H
86H
89H
AAH
BBH
C2H
CCH
DDH
: Enable
: 4 bytes
: Enable
: Disable
: Disable