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Chapter 4 SCSI Commands
READ ATTRIBUTE Command (8Ch)
DLT-S4 Interface Reference Guide
245
Table 137 EMAM Attribute
Formats
Attribute Identifier Values
4
The values in the Attribute Identifier field (see
Attribute Format
) are
assigned according to the attribute type and whether the attribute is
standard or vendor unique (see
table 138
).
Table 138 EMAM Attribute
Identifier Range Assignments
Only parameters with an Attribute Type of Host can be written using the
WRITE ATTRIBUTES
commands. All other attributes are reported as read
only.
Format
Name
Description
00b
BINARY
The Attribute Value field contains binary
data.
01b
ASCII
The Attribute Value field contains only
graphic codes; that is, byte code values 20h
through 7Eh, and is left-aligned, placing any
unused bytes at the highest offset in the
field. The field contains 20h, the ASCII
space character, in any unused bytes.
10b
TEXT
The Attribute Value field contains text data.
11b
Reserved
Attribute
Identifiers
Attribute
Type
Subtype
0000h - 03FFh
Device
Standard
0400h - 07FFh
Medium
Standard
0800h - 0BFFh
Host
Standard
0C00h - 0FFFh
Device
Vendor Unique
1000h - 13FFh
Medium
Vendor Unique
1400h - 17FFh
Host
Vendor Unique
1800h - FFFFh
Reserved