Change
SCSI
10
Change
SCSI
10
The CHANGE SCSI ID command instructs the Target
to
change its address
to
that
supplied
in the
SCSI ID field. The Target will accept the command
at
any time, but will not change
the
ID
until a SCSI bus reset is performed. This allows the Initiator
to
change the ID'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
Block
(CDS)
Bit
Byte
7
I
6
I
5
I
4
I
3
I
2
J
1
1
0
00
Opcode=
CIH
01
Logical
Unit
Number
I
Reserved
02-03
Reserved
04
Reserved
I
IDCF
I
SCSIID
05
Control
Byte
IDCF (ID Control Field).
If
IDCF =
0:
The SCSI
ID
field
is ignored and the drive obtains its
ID
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
2;
LSB
= bit
O.
DRAFT
Vendor
Unique
Command
Descriptions
B·7
1/18/93 09:58
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