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Tandberg Data
Mode Select
14-18
Tandberg SLR Product Line SCSI Functional Specifications
14.3.6. Data Compression Page
This page is used to specify data compression
configurations.
The page can be saved.
BYTE
BIT 7
6
5
4
3
2
1
0
00
PS
R
Page Code = 0Fh
01
Page Length = 0Eh
02
DCE
DCC
RESERVED
03
DDE
RED
RESERVED
04
Compression Algorithm
07
08
Decompression Algorithm
11
12
RESERVED
13
RESERVED
14
RESERVED
15
RESERVED
Table 14-17: Data Compression Page Descriptor
PS
The Parameter Savable (PS) bit must be set to zero.
Page Code
This field is always set to 0Fh.
Page Length
This field must be set to 0Eh.
DCE
A Data Compression Enable (DCE) bit of one indicates
that the data compression is enabled. When this bit is
set, data sent to the Drive by the initiator shall be
processed using the selected Compression Algorithm
before being written to the medium. A DCE bit of zero
indicates that the data compression is disabled. The
DCE-bit can only be set to one if the DCC-bit indicates
that the Drive supports data compression.
Ö
Legal values are 0 and 1.
Ö
The default (factory programmed) value is 1.
DCC
A Data Compression Capable (DCC) bit of one indicates
that the Drive supports data compression. A DCC bit of
zero indicates that the Drive does not support data
compression. This bit does only make sense for the Mode
Sense command. This bit is not changeable.
Содержание SLR7-140 PROGRAMMER
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