Change WideSCSllD
The
CHANGE
WIOE
SCSI
10
command instructs
the
Target
to
change its address
to
that
supplied in
the
SCSI
10
field.
The
Target will accept
the
command
at
any time,
but
will not
change
the
10
until a SCSI bus reset is performed. This allows
the
Initiator
to
change
the
IO's
of
up
to
seven targets without duplication.
If
power is lost,
the
Target's SCSI ID source will revert
to
the
address pinsets when power is
restored.
Rezero Unit Command Descriptor
Biock
(COB)
Bit
Byte
7
I
6
I
5
I
4
I
3
I
2
I
1
I
0
00
Opcode
= C2H
01
Logical Unit
Nwnber
I
Reserved
02-03
Reserved
04
Reserved
I
IDCF
I
SCSI ID
05
Control
Byte
IOCF
(ID Control Field).
If
IOCF
=
0:
The
SCSI
10
field
is
ignored and the drive obtains
its
10
from
the
address
pinsets at
the
next bus reset.
If
IDCF
= 1:
The
drive obtains its ID from
the
SCSI ID field in byte 4
at
the
next bus
reset.
SCSI ID. Provides
the
new SCSI address:
MSB
= bit
3;
LSB =
bit
O.
B·8 Vendor Unique Command DeSCriptions
DRAFT
1/18/93 09:58
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