參數(shù)資料
型號(hào)： SII3531ACNU
元件分類： 總線控制器
英文描述： PCI BUS CONTROLLER, QCC48
封裝： 7 X 7 MM, 0.40 MM PITCH, LEAD FREE, QFN-48
文件頁數(shù)： 72/81頁
文件大小： 532K
代理商： SII3531ACNU
PCI Express to Serial ATA Controller
Data Sheet
Silicon Image, Inc.
2006 Silicon Image, Inc.
SiI-DS-0208-C
74
6.3.19 Port Context Register
Address Offset: 1E04H
Access Type: Read
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Reserved
PM Port
Slot
Bit [31:09]: Reserved
Bit [08:05]: PM Port (R). This field contains the Port Multiplier port number corresponding to the last FIS
transferred (transmit or receive). Upon a processing halt due to a device specific error, this field contains the PM
port corresponding to the device that returned error status.
Bit [04:00]: Slot (R). This field contains the slot number of the last command processed by the execution unit.
Note that this slot number does not necessarily correspond to the command in error during error halt conditions.
For native queue error recovery, the command slot in error must be determined by issuing a READ LOG
EXTENDED to the device to determine the tag number of the command in error.
6.3.20 SControl
Address Offset: 1F00H
Access Type: Read/Write
Reset Value: 0x0000_0000
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Reserved
PMP
SPM
IPM
SPD
DET
This register is the SControl register as defined by the Serial ATA specification (section 10.1.3).
Bit [31:16]: Reserved (R). This bit field is reserved and returns zeros on a read.
Bit [19:16]: PMP (R/W). This field identifies the currently selected Port Multiplier port for accessing the SActive
register and some bit fields of the Diagnostic registers.
Bit [15:12]: SPM (R/W). 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.
Value
Definition
0000
No power management state 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
Bit [11:08]: IPM (R/W) – This field identifies the interface power management states that may be invoked via the
Serial ATA interface power management capabilities.
Value
Definition
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
Bit [07:04]: SPD (R/W) – This field identifies the highest allowed communication speed the interface is allowed
to negotiate.
Value
Definition
0000
No restrictions (default value)
0001
Limit to Generation 1 (1.5 Gb/s)
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