Nop (Ata Command 00) - Seagate Travan 40 Tape Drive STT2401A Product Manual

ATAPI Interface

NOP (ATA Command 00)

Host Taskfile Registers—Inputs
Host Taskfile 7
Register
Features
Sector Count
Sector
Number
Byte Count
High
Byte Count
Low
Device/Head rsvd
Command
Host Taskfile Registers—Outputs
Host Taskfile 7
Register
Error rsvd
Sector Count
Sector
Number
Byte Count
High
Byte Count
Low
Device/Head rsvd
Status BSY
Seagate Travan 40 Product Manual
This command allows a Host that only performs 16-bit register accesses, to check
device status.
If this command is supported, the drive shall respond, as it does to an unrecognized
command by setting the ABRT bit to 1 in the Error register, setting the Error bit in
the Status Register, clearing the BSY to 0 in the Status Register, and asserting
INTRQ signal.
This command is not supported. The device will abort the command.
Data Bits
6 5 4
N/A
N/A
N/A
N/A
N/A
LBA rsvd DEV
command
Data Bits
6 5 4
tag type (not supported)
not changed
not changed
not changed
not changed
LBA rsvd DEV
RDY rsvd DSC
3 2 1
SAM LUN (not used)
3 2 1
MCH ABRT EOM
SAM LUN (not used)
DRQ Corr rsvd
Chapter 5
0 HEX
N/A
N/A
N/A
N/A
N/A
00
0 HEX
ILI 04
00
00
00
00
CHK 00
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