Disconnect/Reconnect Control Page (02H) - Seagate SCSI Interface Product Manual

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5.12.3

Disconnect/Reconnect Control page (02h)

The Disconnect/Reconnect Page implementation is defined in Table 91. This table summarizes the function
and defines the default value and changeable status.
Table 91: Disconnect/Reconnect Control page (02h)
Bit 7
Byte
0 1
PS [1]
1 Page Length (0Eh)
2
Buffer Full Ratio [3] [4]
Default
Changeable [2]
3
Buffer Empty Ratio [3] [5]
Default
Changeable [2]
4
Bus Inactivity Limit (MSB) [6]
Default
Changeable [2]
5
Bus Inactivity Limit (LSB) [6]
Default
Changeable [2]
6,7
Disconnect Time Limit [7]
Default
Changeable [2]
8,9
Connect Time Limit [8]
Default
Changeable [2]
(MSB)
10,11
Default
Changeable [2]
12
EMDP [11]
Default
Changeable [2]
13-15 Reserved
Notes.
[1] The PS (Parameter Savable) bit of 1 indicates that the page 02h parameter data is savable.
[2] A changeable value of zero means this function is not directly changeable by an initiator. A value of 1
means the bit function is directly changeable by an initiator (see Mode Select command). See individual
drive's Product Manual, Volume 1, Mode Sense data section for table showing changeable values.
[3] Both ratio parameters are the numerators of a fractional multiplier that has 256 (100h) as its denominator.
[4] The Buffer Full Ratio indicates, on Read commands, how full the drive's buffer shall be before attempting
a reselection. This value is changeable by an initiator.
6 5
Page Descriptor Header
0 0
Disconnect/Reconnect Control Parameters
Maximum Burst Size [9]
0 0
SCSI Interface Product Manual, Rev. J
4 3
0 0
Page Code (02h)
0
DImm [12]
2 1
0 1
(LSB)
DTDC [10]
0
0