Quantum Audio STT2401A Manuel D’Utilisation
Chapter 5
ATAPI Interface
Page 34
Seagate Travan 40 Product Manual
LOAD/UNLOAD Command (EOT, RET and LOA Bits)
Initial State
EOT
RET
LOA
Action
Final State
Loaded, Ready
0
0
0
Position to BOT and set Unload
status
status
Unloaded, Not Ready
Loaded, Ready
0
0
1
Position to BOT
Ready
Loaded, Ready
0
1
0
Retension, Position to BOT and set
Unload status
Unload status
Unloaded, Not Ready
Loaded, Ready
0
1
1
Retension and Position to BOT
Ready
Loaded, Ready
1
0
0
Set Unload status
Unloaded, Not Ready
X
1
X
1
Check Condition, Illegal Request
Same as Initial
Loaded, Ready
1
1
0
Retension and set Unload status
Unloaded, Not Ready
Unloaded, NR
X
X
0
Check Condition, Not Ready
Unloaded, Not Ready
Unloaded, NR
0
0
1
Load cartridge and Position to BOT
Ready
Unloaded, NR
0
1
1
Load cartridge, Retension and
Position to BOT
Position to BOT
Ready
Additional Sense Bits: CNI—Cartridge Not in Place, WP—Cartridge Write
Protected, EOM—End-of-Media, BOM—Beginning-Of-Media.
Protected, EOM—End-of-Media, BOM—Beginning-Of-Media.
NOTE: Log Select page 32h (byte 17h bit 4) defines the action of the UNLOAD
command. If the bit is 1, the Unload command will eject the cartridge. If the
bit is 0, the Eject button must be pushed to eject the cartridge.
bit is 0, the Eject button must be pushed to eject the cartridge.
NOTE: If a cartridge has been ejected but not removed from the drive, a LOAD
command will draw the cartridge into the drive.