Set Features Command Support Coverage; Figure 138. Set Features Command Coverage - IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive Specifications

15.2 SET FEATURES Command Support Coverage

The following table provides a list of Feature Registers and Feature Names as well as a column titled
"Implementation for Travelstar 48GH, 30GN & 15GN" which indicates whether the drive has the capability
of executing the command in comparison to the ATA/ATAPI-5 defined command set. For details of
operation, refer to Section 13.29, "Set Features (EFh)" on page 163.
Features Features
Register Name
02h Enable write cache
03h Set transfer mode
05h Enable Advanced Power Management
09h Enable Address Offset mode
44h Set vendor specific bytes ECC
55h Disable read look-ahead feature
5Dh Enable release interrupt
5Eh Enable SERVICE interrupt
66h Disable reverting to power on defaults
82h Disable write cache
85h Disable Advanced Power Management
89h Disable Address Offset mode
95h Enable Media Status Notification
AAh Enable read look-ahead feature
BBh Set 4 bytes ECC
CCh Enable reverting to power on defaults
DDh Disable release interrupt
EEh Disable SERVICE interrupt
others Reserved

Figure 138. SET FEATURES command coverage

Travelstar 48GH, 30GN & 15GN hard disk drive specifications
Implementation
for Travelstar
48GH, 30GN & 15GN
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
No
Reserved
201