Datasheet

2.6 Sense Data Hold State
C141-C008 2-21
(4) REPORT LUN command
The REPORT LUN command is executed normally, but the Unit Attention
condition is not cleared.
2.5.3 UNIT ATTENTION condition multiple hold
If any Unit Attention condition occurs and another Unit Attention condition
occurs which is caused by other factors before the first Unit Attention condition is
cleared by the INIT for which that condition is held, those multiple Unit Attention
conditions are held and the IDD reports multiple unit attention conditions in
sequence.
2.6 Sense Data Hold State
If the status is the Check Condition status when the status is reported, this IDD
adds that sense data to the response frame and notifies the INIT of it.
Therefore, the sense data hold state does not occur and the CA status does not
occur.
The function which reports sense data automatically is called the Auto Sense
function.
This IDD operates with the Auto Sense function activated at all times and this
function cannot be deactivated. Also, since this IDD does not support ACA, it
does not enter the ACA state.
2.7 Command Processing Exceptions
2.7.1 Overlapping commands
The IDD recognizes when overlapping commands have occurred when the
following conditions occur and terminates the commands abnormally.
a) If, while the IDD is executing a tagged command or is queuing it, the initiator
that issued the command issues a tagged command with the same tag
specified or a command without a tag before execution of the first command
has been completed.
After execution of the command is completed, normally, the TARG notifies the
INIT of its RESPONSE. Also, execution of a command is terminated by LIP,
TARGET RESET, CLEAR TASK SET, ABORT TASK SET or ABTS.
The IDD terminates abnormally all commands (which are being executed or are
being queued) which it has already received from an overlapping INIT and also
terminates abnormally both the commands that caused the overlap, in the order
described below.