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4.2 Various Processes
4.2.6.1 Active mode
In active mode, all circuits are enabled and the time for command processing is minimized.
4.2.6.2 Pre-idle mode
In
The ODD automatically enters
4.2.6.3 Idle mode
In idle mode, the servo, and read and write circuits are in stopped state. The ODD can receive a command from the host, but since some circuits are stopped, the command requires an additional 1 s (default) to access the media.
If no command is issued within a specified time (180 s) in active mode, the ODD automatically enters
4.2.6.4 Standby mode
In standby mode, the spindle motor stays stopped. The ODD can receive a command from the host, but since the spindle motor is stopped, the command requires 5 s (default) for recovery before accessing the media.
If no command is issued within a specified time while the ODD is in active mode with the standby timer enabled, the ODD automatically enters standby mode. The ODD automatically enters active mode when it receives an access command.
4.2.6.5 Standby timer
The standby timer counts the elapsed time during which the host issues no commands.
The standby timer value is programmable with the Power Condition Page of the MODE SELECT command. The default standby timer value is 32 minutes (including the transition time to idle mode).