Datasheet

Travelstar 80GN Hard Disk Drive Specification
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4.4.3.2 Mode transition time - from Standby to Idle
4.4.3.3 Operating mode at power on
The device goes into Idle mode after power on or hard reset as an initial state. Initial state may be changed to
Standby mode using pin C on the interface connector. Refer to section 7.10, “Drive address setting” on page 55 for
details.
4.4.3.4 Adaptive power save control
The transient timing from Performance Idle mode to Active Idle mode and Active Idle mode to Low Power Idle
mode is controlled adaptively according to the access pattern of the host system. The transient timing from Low
Power Idle mode to Standby mode is also controlled adaptively, if it is allowed by Set Features Enable Adavanced
Power Management subcommand.
Standby
The device interface is capable of accepting commands. The spindle motor is stopped.
All circuitry but the host interface is in power saving mode. The spindle motor is
stopped. All circuitry but the host interface is in power saving mode.
Sleep
The device requires a soft reset or a hard reset to be activated. All electronics, includ-
ing spindle motor and host interface, are shut off.
Table 11: Drive ready time
From To
Transition Time
(typical)
Transition Time
(max.)
Standby Idle 2.0 (80,60GB)
1.8(40,30,20GB)
9.5
Table 10: Description of operating modes
Operating mode Description