
SiI3726 SATA Port Multiplier
Data Sheet
Addr
0x02
PSCR[02]
Silicon Image, Inc.
2006 Silicon Image, Inc.
SiI-DS-0121-C1
19
Name
SControl
31
30
29
28
27
26
25
24
RSVDRW
20
23
22
21
19
18
17
16
RSVDRW
14
SPM
6
SPD
PMP
15
13
12
11
10
9
8
IPM
7
5
4
3
2
1
0
DET
Bit
31:20
19:16
Label
RSVDRW
PMP
R/W
R/W
R/W
Description
Default
0x000
0x0
This bit field is reserved and returns the value written to it.
This field identifies the currently selected Port Multiplier port for accessing
the SActive register and some bit fields of the Diagnostic registers.
This field selects a power management state. A non-zero value written to
this field causes initiation of the select power management state. This field
self-resets to 0 as soon as action begins to initiate the power management
state transition.
0000: No power management transition requested
0001: Transition to the partial power management state initiated
0010: Transition to the slumber power management state initiated
0100: Transition from a power management state initiated (ComWake
asserted)
Others: Reserved
This field identifies the interface power management states that may be
invoked via Serial ATA interface power management capabilities.
0000: No interface power management restrictions (partial and slumber
modes enabled)
0001: Transitions to the partial power management state are disabled
0010: Transitions to the slumber power management state are disabled
0011: Transitions to both the partial and slumber power management
states are disabled
Others: Reserved
This field identifies the highest allowed communication speed the interface
is allowed to negotiate.
0000: No restrictions (default value)
0001: Limit to Generation 1 (1.5 Gb/s)
0010: Limit to Generation 2 (3.0 Gb/s)
Others: Reserved
This field controls host adapter device detection and interface initialization.
0000: No action
0001: COMRESET is periodically generated until another value is written to
the field
0100: No action
Others: Reserved; no action
15:12
SPM
R/W
0x0
11:8
IPM
R/W
0x0
7:4
SPD
R/W
0x0
3:0
DET
R/W
0x0
Addr
Name
Reserved
31
30
29
28
27
26
25
24
RSVD0
23
22
21
20
19
18
17
16
RSVD0
15
14
13
12
11
10
9
8
RSVD0
7
6
5
4
3
2
1
0
0x03 - 0x0F
PSCR[03–15]
RSVD0
Bit
31:00
Label
RSVD0
R/W
R
Description
Default
0x0000
0000
This bit fields are reserved and return a zero value.