Smart Disable Operations [B0H, Sub D9H] - Hitachi C4K60 - Travelstar Slim - Hard Drive Specifications

7.5.44. SMART Disable Operations [B0h, Sub D9h]

Task File Registers
Command
LBA High
LBA Mid
LBA Low
Device/Head
Sector Count
Features
The SMART DISABLE OPERATIONS command disables all SMART capabilities within the device including
any and all timer functions related exclusively to this feature. After receipt of this command the device will
disable all SMART operations. Attribute values will no longer be monitored or saved by the device. The
device will preserve the state of SMART (either enabled or disabled) across power cycles.
If SMART is not enabled, or if the values in the Features, LBA Mid (Cylinder Low) or LBA High (Cylinder
High) registers are invalid, an Aborted command error is posted.
Upon receipt of the SMART DISABLE OPERATIONS command from the host, the device sets BSY, disables
SMART capabilities and functions, clears BSY, and asserts INTRQ.
After receipt of this command by the device, all other SMART commands, with the exception of SMART
ENABLE OPERATIONS, are disabled and invalid and are aborted by the device (including SMART
DISABLE OPERATIONS commands), returning the Aborted command error.
K6610170
Rev.2
Dec 22, 2004
7 6 5 4
B0h
C2h
4Fh
XX
X X X DRV
XX
D9h
- 105 -
3 2 1 0
X X X X