Reset - Tandberg Data SLR7-140 PROGRAMMER Manual

Tandberg Data
If ATN occurs during a DATA phase of a:
- READ
- READ BUFFER
- VERIFY
- WRITE
or
- WRITE BUFFER
command,
MESSAGE-OUT will occur after transfer of no more data
than given by the Maximum Burst Size parameter in the
Disconnect/Reconnect Page of the MODE SELECT command.
If ATN occurs during a STATUS phase, MESSAGE-OUT will
occur after the status byte has been acknowledged by the
Initiator.
If ATN occurs during a MESSAGE IN phase, MESSAGE-OUT
will occur after the message byte has been acknowledged
by the Initiator.
If ATN occurs during a SELECTION phase and before the
Initiator releases
occur immediately after the SELECTION phase.
If ATN occurs during a RESELECTION phase, MESSAGE-OUT
will occur after the Drive has successfully sent it's
IDENTIFY message for that RESELECTION phase.
3.5.2.

Reset

The RESET condition is used to immediately clear all
SCSI devices from the bus. This condition will take
precedence over
Regardless of prior bus phase, the bus enters the bus
free phase. Any
condition by asserting the RST signal.
The Drive will never create a RESET condition.
The Drive is reset under the following conditions:
At Power-on
When RST is asserted by one of the devices on the
SCSI-bus
When a BUS DEVICE RESET message is sent to the drive
When the Drive microcode (ucode) is updated
Internal watchdog function detecting uncorrectable
hardware or software errors
The Drive only supports the SCSI Hard Reset option.
3-13 Tandberg SLR Product Line SCSI Functional Specifications
the BSY signal,
all other phases
SCSI device may
Logical Characteristics
MESSAGE-OUT will
and conditions.
create the reset