Sleep Mode | Maxtor VL 17 instruction

INTERFACECOMMANDS

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.

7 – 8

Image 56

Maxtor VL 17 manual Sleep Mode

Contents

HA RD Drive Produc T MA Nual DiamondMaxVL REV EC no Section Description Date Before You Begin U T I O N Contents Product Specifications Handling and Installation AT Interface Description Host Software Interface Glossary Interface CommandsService and Support Figures Introduction Maxtor CorporationManual Organization Abbreviations Signal Conventions ConventionsKey Words Numbering DiamondMax VL 17 Key Features Product Description Product Features Functional / Interface Defect Management Zone DMZ On-the-Fly Hardware Error Correction Code ECCLogical Block Addressing Cache Management Major HDA Components Subsystem Configuration Jumper Location/ConfigurationCylinder Limitation Dual Drive Support Product Specifications Drive ConfigurationPerformance Specifications Models and Capacities Physical Dimensions Parameter Standard Metric Power Requirements Power Mode DefinitionsEPA Energy Star Compliance Environmental Limits Reliability Specifications Shock and Vibration Canadian Emissions Statement Safety Regulatory ComplianceRadiated Electromagnetic Field Emissions EMC Compliance Handling and Installation Hard Drive Handling PrecautionsPre-formatted Drive Important Notice Unpacking and Inspection Multi-pack Shipping Container Repacking Physical InstallationRecommended Mounting Configuration Handling Precautions Tools for InstallationSystem Requirements Drive Identification Information General Requirements Hard Drive Identification Systems Using Cable Select Installing 5.25-inch Mounting Brackets and RailsInstalling in a Device Bay Mounting Drive in System Attaching Interface and Power Cables Attaching System Cables Bios Cmos Parameters System SetupSetting the Bios Cmos Hard Drive Preparation System Hangs During Boot Interface Connector PIN SignalAT Interface Description Pin Description Summary PIN Name Signal Name Signal Description Pin Description Table Timing Parameters Mode PIO Timing DMA Timing Mode MIN MAX Ultra DMA Timing Sustained Ultra DMA Data In Burst Device Terminating an Ultra DMA Data In Burst Initiating an Ultra DMA Data Out Burst Device Pausing an Ultra DMA Data Out Burst Device Terminating an Ultra DMA Data Out Burst Error Register Features RegisterHost Software Interface Task File Registers Sector Count Register Sector Number RegisterCylinder Number Registers Device/Head Register Command Register Summary Command Name Command Code Parameters UsedTimer Value TIME-OUT Period Control Diagnostic Registers Alternate Status RegisterDevice Control Register Digital Input Register Interrupt Handling Reset and Interrupt HandlingReset Handling Interface Commands Set Feature Commands Read Verify Sectors Read CommandsRead Sectors Read DMA Read Multiple Write Commands Set Multiple ModeWrite Sectors Write Verify Sectors Write Multiple Write DMA Value Description Set Feature CommandsSet Features Mode Power Mode Commands Sleep Mode Identify Drive Initialization CommandsWord Content Description 15-8 = PIO data transfer mode = Write Cache enabled Initialize Drive Parameters Seek, Format and Diagnostic Commands Execute Drive DiagnosticError Code Description Format Track A.R.T. Command Set Execute S.M.A.R.T Service and Support Service PolicyNo Quibble Service Support Internet MaxFax ServiceCustomer Service Access Time Glossary Cylinder Zero Gigabyte GB Logical Block Addressing Read Gate Signal THIN-FILM Media