SCSI Commands
Page
55
Mode Parameter Pages
There are several mode parameter pages of different formats that allow you to set
different drive parameters. The following mode parameter pages are supported:
Mode Parameter Page
See Page
Disconnect/Reconnect Page (02h)
55
Control Mode Page (0Ah)
56
Data Compression Control Page (0Fh)
57
Sequential Access Device Configuration Page (10h)
58
Information Exceptions Mode Page (1Ch)
59
Drive Capabilities Control Mode Page (21h)
60
Interface Control Mode Page (22h)
60
The following table shows the general format of a Mode Parameter Page.
Byte
Bits
7
6
5
4
3
2
1
0
0
Reserved
Page Code
1
Additional Page Length
2 - n
Mode Parameters
Field Descriptions
Field
Bytes
Bits
Description
Page
Code
0
0-5
02h = Disconnect/Reconnect Page
0Ah = Control Mode Page
0Fh = Data Compression Control Page
10h = Device Configuration Page
1Ch = Information Exceptions Page
21h = Drive Capabilities Control Mode Page
22h = Interface Control Page
Additional
Page
Length
1
Specifies the length (in bytes) of the Mode Parameters.
Mode Pa-
rameters
2-n
The mode parameters are specific to each mode parameter page
and are described in the following sections.
Reserved
All reserved bits must be o.
If the initiator does not set the Additional Page Length field of the Mode Page to the
value indicated in the Mode Page definition (for example, 10h for the Device
Configuration Page), the drive terminates the Mode Select command and returns
Check Condition status bytes with an Illegal Request sense key. The Additional
Sense Code and Additional Sense Code Qualifier are set to Invalid Field in
Parameter List.
Disconnect/Reconnect Page
The Disconnect/Reconnect page allows the host to set the maximum burst size for
data transfer.
Byte
Bits
7
6
5
4
3
2
1
0
0
Reserved
Page Code (02h)
1
Additional Page Length (0Eh)
