Fujitsu MAX3073NC - SCSI,80, Dell DC961,Hard Drive Scsi Logical Interface Specifications page 70

Command Specifications
k. Device Serial Number field
The value following byte 4 of the device serial number in the VPD information is indicated in this
field. Higher order digits which do not contain valid numbers are filled with ASCII code spaces (X
'20').
l. Clocking field
This field indicates the code which shows the clocking method. The definition of the code is as
shown below.
"Clocking" Bit 3 2 Description
m. QAS (Quick Arbitrate Supported) bit
This bit of one indicates that the device server supports the quick arbitrate feature. A value of zero
indicates that the device server does not support the quick arbitrate feature.
n. IUS (Information unit supported) bit
This bit of one indicates that the device server supports information units. A value of zero indicates
that the device server does not support information units.
o. Version Descriptor field
This field is provided for identifying up to eight standards to which the Device claims conformance.
The IDD shall be indicated as shown below.
BYTE
58 to 59
60 to 61
62 to 63
64 to 65
66 to 67
68 to 69
70 to 71
72 to 73
3-8
0 0 Indicates the device server supports only ST
0 1 Indicates the device server supports only DT
1 0 Reserved
1 1 Indicates the device server supports ST and DT
Code
X'00', X'40'
X'0B', X'54'
X'01', X'3C'
X'01', X'9B'
X'00', X'00'
X'00', X'00'
X'00', X'00'
X'00', X'00'
Description
SAM2
SPI4 T10/1356 rev07
SPC ANSI X3.301: 1997
SBC T10/0996 rev08C
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C141-C010