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ATAPI Interface Chapter 5
Seagate Travan 40 Product Manual Page 105
IDLE (ATA Command E3)
This command is accepted but performs no function. This command normally allows
the Host to place the device in Idle mode using the standby timer. INTRQ is asserted
even though the device may not have fully transitioned to Idle 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) secs
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
Sector Number N/A N/A
Byte Count High N/A
Byte Count Low N/A
Device/Head rsvd LBA rsvd DEV SAM LUN (not used)
Command command E3
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