Seagate Medalist 2160N (ST52160N), Product Manual

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When the disable queuing (DQue) bit is 0, tagged com-
mand queuing is enabled. When the
DQue bit is 1, tagged
command queuing is disabled.
Byte 4 Not implemented
Byte 5 Reserved
Bytes 6–7 Not implemented
Bytes 8–9 The busy time-out period field contains the maximum
possible value, which means that the drive remains busy
an unlimited amount of time.
Bytes 10–11 Reserved
C.7.1 Unit Attention Parameters (00
H
)
The Unit Attention Parameters are shown in the table below. This table
shows the function, the default value and the changeability of each bit.
Bytes
Bits
7 6 5 4 3 2 1 0
0
PS
(1)
Page code (0
H
)
0 0 0 0 0 0 0
1 Page length (in bytes)
2
Rsrvd
SSM
(2)
IL
(3)
Unit-
Attn (4)
Reserved
Strict
(5)
Rsrvd
default 0 0 0 0 0 0 1 0
changeable 0 1 0 1 0 0 0 0
3
(default)
00
H
changeable 00
H
Notes:
1. A PS bit of one indicates that the drive is capable of saving
the page in a nonvolatile vendor-specific location (used only
with the Mode Sense command).
2. If the enable Synchronous Select Mode (SSM) bit is 1, the
drive initiates for WDTR and SDTR messages. It initiates
only if required (after a reset, reset message or power cy-
cle). If the SSM bit is 0, the drive does not initiate WDTR or
SDTR messages, regardless of negotiated conditions before
reset, reset messages or a power cycle.
114 Medalist Pro 2160N/2160WC Product Manual, Rev. A