參數(shù)資料
型號(hào)： SII3512ECTU128
元件分類： 總線控制器
英文描述： PCI BUS CONTROLLER, PQFP128
封裝： LEAD FREE, TQFP-128
文件頁數(shù)： 9/132頁
文件大?。?/td> 3011K
代理商： SII3512ECTU128
SiI3512 PCI to Serial ATA Controller
Data Sheet
Silicon Image, Inc.
98
2007-2010 Silicon Image, Inc. All rights reserved.
DS-0102-D01
CONFIDENTIAL
Vendor Specific command before such commands can be issued. Otherwise, vendor-specific commands are
aborted.
Reserved commands: Expect for those commands whose protocols are individually set (via the VS Set Unlock
Individual and VS Set Command Protocol commands), the host or device must be unlocked via the VS Unlock
Reserved command before such commands can be issued. Otherwise, reserved commands are aborted.
Obsolesced and Retired commands: Implementation of such commands is optional.
Definitions
Command — Unless otherwise stated, this is the value written to the ATA Command register.
Command Code — This is the code corresponding to the ATA command. It is also a field in the Command Protocol
Table.
Command Protocol Table — The table that contains the individual vendor-specific and reserved commands supported.
Features — Unless otherwise stated, this is the value written to the ATA Features register.
Features Code — This is the code corresponding to the ATA Features register. It is also a field in the Command Protocol
Table.
Features Mask — This is a field in the Command Protocol Table that allows several Features Codes to be used for the
same command.
General Protocol Code — On a VS Set General Protocol command after a VS Unlock Vendor Specific or VS Unlock
Reserved command, the General Protocol Code will be set as the protocol for all undefined vendor-specific (if unlocked)
and/or undefined reserved (if unlocked) commands. An undefined vendor-specific/reserved command is one that does not
have an entry in the Command Protocol Table.
Protocol Code — This code determines the protocol associated with a command. It is also a field in the Command
Protocol Table.
Subcommand Code — Same as Features Code.
VS Features Set — The commands needed to support this scheme (see SiI3512 Vendor-Specific Commands section on
page 100).
VS State Machine — The state machine that determines what vendor-specific and reserved commands are to be supported
(see State Transitions section on page 111).
Scheme
Reset
Upon any hardware reset or the Serial ATA COMRESET, or COMINIT, the VS State Machine in the SiI3512 controller
will be initialized to the locked state (the "default" state), which will abort all vendor-specific and reserved commands.
Soft Reset (via Device Control register bit 2) does NOT affect the VS State Machine.
Operation
The following summarizes how the vendor-specific/reserved commands are supported. Detailed operations are described
in later sections.
1.
The default state is locked. All vendor-specific commands will be aborted.
2.
Unlock:
To unlock the SiI3512 controller and/or device to support vendor-specific commands: Issue a VS Unlock
Vendor Specific command. The SiI3512 device will also send this command to the Serial ATA device. If the
downstream Serial ATA device is a bridge, the device bridge may optionally issue this command to the attached
parallel ATA device. Note that the unlock will take effect in the SiI3512 controller even if an ABORT status is
reported.
To unlock the SiI3512 controller and/or device to support reserved commands: Issue a VS Unlock Reserved
command. The SiI3512 controller will also send this command to the Serial ATA device. If the downstream
Serial ATA device is a bridge, the device bridge may optionally issue this command to the attached parallel ATA
device. Note that the unlock will take effect in the SiI3512 device even if an ABORT status is reported.
To support individual vendor-specific or reserved command: Issue a VS Unlock Individual command.
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