Hitachi C4K60 Specifications - Page 108

SMART Enable Operations [B0h, Sub D8h]

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7.5.47. SMART Enable Operations [B0h, Sub D8h] Task File Registers Command LBA High LBA Mid LBA Low Device/Head Sector Count Features 7 6 5 4 3 2 1 0 B0h C2h 4Fh XX X X X DRV X X X X XX D8h The SMART ENABLE OPERATIONS command enables access to all SMART capabilities within the device. Prior to receipt of this command attribute values are neither monitored nor saved by the device. The device will preserve the state of SMART (either enabled or disabled) across power cycles. Once enabled, the receipt of subsequent SMART Enable Operations commands does not affect any of the attribute values. 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 this command from the host, the device sets BSY, enables SMART capabilities and functions, clears BSY, and asserts INTRQ. K6610170 Rev.2 Dec 22, 2004 - 108 -

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K6610170
Rev.2
Dec 22, 2004
- 108 -
7.5.47. SMART Enable Operations [B0h, Sub D8h]
Task File Registers
7
6
5
4
3
2
1
0
Command
B0h
LBA High
C2h
LBA Mid
4Fh
LBA Low
XX
Device/Head
X
X
X
DRV
X
X
X
X
Sector Count
XX
Features
D8h
The SMART ENABLE OPERATIONS command enables access to all SMART capabilities within the device.
Prior to receipt of this command attribute values are neither monitored nor saved by the device. The device
will preserve the state of SMART (either enabled or disabled) across power cycles. Once enabled, the
receipt of subsequent SMART Enable Operations commands does not affect any of the attribute values.
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 this command from the host, the device sets BSY, enables SMART capabilities and
functions, clears BSY, and asserts INTRQ.