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Standby (ata command e2) – Quantum Audio Travan 40 Tape Drive STT3401A User Manual

Page 120

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Chapter 5

ATAPI Interface

Page 112

Seagate Travan 40 Product Manual

STANDBY (ATA Command E2)

This command is accepted but performs no function. This command causes the
device to enter the Standby mode.

If the Sector Count register is non-0, then the Standby timer shall be enabled. The
value in the Sector Count register shall be used to determine the time programmed
into the Standby timer.

If the Sector Count register is 0, then the Standby timer is disabled.

Host Taskfile Registers—Inputs

Data Bits

Host Taskfile
Register

7

6

5

4

3

2

1

0

HEX

Features

N/A

N/A

Sector Count

Standby timer setting:

00h timeout disabled
01h-F0h timeout= (value * 5) sec
F1h-FBh timeout= ( (value-240) * 30) min
FCh timeout= 21 minutes
FDh timeout= period between 8 and 12 hours
FEh reserved
FFh timeout= 21 min 15 sec

N/A

Sector
Number

N/A

N/A

Byte Count
High

N/A

N/A

Byte Count
Low

N/A

N/A

Device/Head

rsvd

LBA

rsvd

DEV

SAM LUN (not used)

Command

command

E2

Host Taskfile Registers—Outputs

Data Bits

Host Taskfile
Register

7

6

5

4

3

2

1

0

HEX

Error

rsvd

tag type (not supported)

MCH

ABRT

EOM

ILI

00

Sector Count

N/A

N/A

Sector
Number

N/A

N/A

Byte Count
High

N/A

N/A

Byte Count
Low

N/A

N/A

Device/Head

rsvd

LBA

rsvd

DEV

SAM LUN (not used)

Status

BSY

RDY

rsvd

DSC

DRQ

Corr

rsvd

CHK

40 or 50

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