Maxtor 53073U6, 51024U2, 52049U4, 51536U3, 54098U8 specifications Sleep Mode

INTERFACE COMMANDS

When enabling the Automatic Power Down sequence, the value placed in the Sector Count register is multiplied by five seconds to obtain the Time-out Interval value. If no drive commands are received from the host within the Time-out Interval, the drive automatically enters the STANDBY mode. The minimum value is 5 seconds.

TIMER VALUE	TIME-OUT PERIOD
0	Time-out disabled
1 - 240	(value * 5) seconds
241 - 251	((value - 240) * 30) minutes
252	21 minutes
253	Vendor unique period = 10
	hours
254	Reserved
255	21 minutes, 15 seconds

While the drive is in STANDBY MODE, any commands received from the host are accepted and executed as they would in normal operation, except that the spin motor is started if required to execute a disk command. Under these conditions, the drive will set BSY when command processing would normally begin and will leave BSY set until the drive comes up to speed and the disk command can be executed. Disk commands issued while the drive is in STANDBY MODE, restarts the Time-out Interval after completing the command. A reset must be issued before attempting to issue any commands while the drive in

SLEEP MODE.

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