CN108595358A - A kind of SD card system and its design method applied to server master board - Google Patents
A kind of SD card system and its design method applied to server master board Download PDFInfo
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- CN108595358A CN108595358A CN201810288810.XA CN201810288810A CN108595358A CN 108595358 A CN108595358 A CN 108595358A CN 201810288810 A CN201810288810 A CN 201810288810A CN 108595358 A CN108595358 A CN 108595358A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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Abstract
This application discloses a kind of SD card systems and its design method applied to server master board.The SD card system includes usb signal gating module, a SD Controller and a SD card slot, usb signal gating module includes at least two input terminals and an output end, and the output end of usb signal gating module is sequentially connected SD Controller and SD card slot.The design method is made usb signal pass through usb signal gating module and is connect with SD Controller, and carried out the selectivity conducting of usb signal using usb signal gating module by the way that a usb signal gating module is arranged on server master board.The structure design of SD card system in the application, can greatly reduce the occupancy of mainboard PCB space, be conducive to the device density for improving server master board, also help the overall cost for reducing SD card system.
Description
Technical field
This application involves server board design fields, more particularly to a kind of SD card applied to server master board
System and its design method.
Background technology
SD (Secure Digital Memory Card, safe digital card) cards are a kind of based on semiconductor flash memory technique
Storage device is widely used in various mancarried devices and server.In server board design field, to realize server
The mounting of mainboard and external SD card, usually reserves SD card slot, for placing SD card when server master board designs.Compare in server
More common SD card generally includes two classes, be respectively connected to south bridge and BMC (Baseboard Management Controller,
Baseboard management controller).Wherein, be connected to south bridge introduction of the SD card usual built-in services device producer to the server product,
User's operation guide and necessary driving, software etc., serve primarily in client and use for the first time.The SD card for being connected to BMC is usually used
In the BMC log that record system generates at any time, in case being checked when failure.How reasonably to SD card module in server master board into
Row design is an important problem to make full use of the PCB space of server master board.
SD card module is mainly separately connected south bridge by two sets of SD Controller and SD card slot in server master board at present
The usb signal sent out with BMC, operation principle is referring to Fig. 1, has two accesses for connecting as shown in Figure 1, in server master board
SD card.Specifically, CPU is connected by DMI (Direct Media Interface, direct media interface) bus with south bridge,
There are multiple USB interfaces, one of USB interface to be connected to SD Controller1 (storage control) chip, SD in south bridge
Controller1 chips rear end mounts SD card slot 1, built-in SD card 1 in SD card slot 1, for storing user's manual, driving, software
Etc. data.BMC is the substrate management control center of basic ARM cores, can also pick out usb bus outside, and the USB interface of usb bus connects
SD Controller2 chips are connected to, SD card slot 2 is then mounted by SD Controller2 chips, built-in SD in SD card slot 2
Card 2, for recording each module operating status of mainboard that BMC is monitored.
However, for the SD card for connecting different, at least needing two SD in the design of SD card module in server master board at present
Controller (storage device controller) and two SD card slots, and SD Controller and SD card slot are required for occupying service
Larger space and area, especially SD card slot on device mainboard, occupied space bigger, the sizableness of a usual SD card slot
5 times in common chip are big, are unfavorable for expanding other prior function modules, therefore, this structure on server master board
Design is unfavorable for improving the device density of server master board.In addition, the inside of each SD Controller has complicated control
Logic processed, outside also need the auxiliary circuits such as connection crystal oscillator, and cost is higher, therefore, more SD on server master board
Controller makes the comprehensive design cost of server master board higher.
Invention content
This application provides a kind of SD card systems and its design method applied to server master board, to solve the prior art
Space is larger on middle SD card module occupancy server master board, the problem of being unfavorable for improving the device density of server master board.
In order to solve the above-mentioned technical problem, the embodiment of the present application discloses following technical solution：
A kind of SD card system applied to server master board, the SD card system include：Usb signal gating module, one
SD Controller and a SD card slot, the usb signal gating module include at least two input terminals and an output
End, and the output end of the usb signal gating module is sequentially connected SD Controller and SD card slot；
The usb signal gating module, the usb signal for receiving different application scene by input terminal, and it is selective
The input terminal that conducting matches with output end；
Different SD cards can be stored in the SD card slot.
Optionally, signal control terminal is additionally provided on the usb signal gating module, the signal control terminal is for accessing
Control signal, and the input terminal to match with output end by the control signal gating.
Optionally, the signal control terminal includes Enable signals control terminal and Select signal control terminals, the control
Signal includes Enable signals and Select signals, and the Enable signals are used to control the break-make of usb signal gating module, institute
Select signals are stated for when usb signal gating module is connected to, gating the input terminal to match with output end.
Optionally, the control logic of the Enable signals control terminal and Select signal control terminals, using external contact pin
The mode of jump cap or the mode of chip controls.
Optionally, the SD Controller are USB224X family chips.
Optionally, the usb signal gating module is a USB Switch chips.
Optionally, the usb signal includes the usb signal that south bridge is sent out and the usb signal that BMC is sent out.
A kind of design method of server master board SD card system, the SD card system include：Usb signal gating module, one
A SD Controller and a SD card slot, the method includes：
One usb signal gating module is set on server master board, so that the usb signal applied to different scenes is passed through described
Usb signal gating module is transmitted to SD Controller；
The selectivity that usb signal is carried out using the usb signal gating module is connected.
Optionally, signal control terminal, at least two input terminals and an output are provided on the usb signal gating module
End, at least two input terminal is for receiving usb signal, and the output end is connect with SD Controller, the signal control
End processed is used for incoming control signal, and the input terminal to match with output end by the control signal gating.
Optionally, the signal control terminal includes Enable signals control terminal and Select signal control terminals, the control
Signal includes Enable signals and Select signals, and the Enable signals are used to control the break-make of usb signal gating module, institute
Select signals are stated for when usb signal gating module is connected to, gating the input terminal to match with output end.
The technical solution that embodiments herein provides can include the following benefits：
The application provides a kind of SD card system applied to server master board, which includes：Usb signal gates mould
Block, a SD Controller and a SD card slot.Wherein, usb signal gating module includes at least two input terminals and one
A output end, and the output end of usb signal gating module is sequentially connected SD Controller and SD card slot；Usb signal gates mould
Block is for receiving usb signal, and the input terminal that selectively conducting matches with output end.Since usb signal is answered in the application
With scene difference, the application on server master board by being arranged a usb signal gating module, the usb signal gating module root
Be connected according to the required output selectivity of user with the matched input terminal of output end, so as between different application scene
Make the selection on USB line road so that synchronization, only usb signal exports all the way in the usb signal under different application scene,
As soon as only by a SD Controller and SD card slot, can meet the needs of users.Therefore, this SD card system
Structure design can greatly reduce the occupancy of mainboard PCB space, be conducive to the device density for improving server master board.Moreover, SD
For Controller as storage device controller, cost is higher, and the number of SD Controller is reduced in the SD card system of the application
Amount, advantageously reduces the overall cost of SD card system.
The application also provides a kind of design method of server master board SD card system, and this method is mainly in server master board
One usb signal gating module of upper setting, makes usb signal pass through usb signal gating module and is connect with SD Controller；And profit
The selectivity conducting of usb signal is carried out with usb signal gating module.The application on server master board by increasing USB letters
Number gating module, the selection on USB line road, synchronization are made using the usb signal gating module between different application scene
Only usb signal exports all the way in the usb signal of different application scene so that rear end only by a SD Controller and
As soon as SD card slot can be met the needs of users.Therefore, this design method can largely save the PCB space on mainboard, have
Conducive to raising mainboard device density.And the reduction of SD Controller and SD card slot quantity, advantageously reduce cost.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The application can be limited.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the fundamental diagram of SD card module in server master board in the prior art；
A kind of structural schematic diagram for SD card system applied to server master board that Fig. 2 is provided by the embodiment of the present application；
Fig. 3 is the fundamental diagram for the SD card system for being applied to server master board in the embodiment of the present application；
A kind of flow of the design method for server master board SD card system that Fig. 4 is provided by the embodiment of the present application is illustrated
Figure.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without making creative work should all belong to the application protection
Range.
The application in order to better understand explains in detail presently filed embodiment below in conjunction with the accompanying drawings.
Embodiment one
Referring to Fig. 2, a kind of structure for SD card system applied to server master board that Fig. 2 is provided by the embodiment of the present application
Schematic diagram.As shown in Figure 2, the SD card system applied to server master board provided herein includes mainly three parts：USB believes
Number gating module, a SD Controller and a SD card slot.Wherein, usb signal gating module is defeated including at least two
Enter end and an output end, input terminal is used to receive the usb signal of different application scene, and output end is sequentially connected SD
Controller and SD card slot.
Usb signal gating module matches for after receiving usb signal, selectively turning on output end in the application
Input terminal.Input terminal is determined according to the customer demand of output end, is also equivalent to that the usb signal to be obtained is determined, then
This usb signal is transmitted to the storage control SD Controller and SD card slot of rear end by output end, and can in SD card slot
With the different SD card of grafting, for storing different contents.It is of course also possible to one SD card of grafting, by establishing different texts
Part folder stores different contents.Such as：For server in first be delivered for use, user needs to obtain server producer to the service
The introduction of device product, user's operation guide and necessary driving, software etc., can be by usb signal gating module selectively
The input terminal being connect with the usb signal that south bridge is sent out is connected.If user needs to record system in operation at any time using BMC
The a large amount of daily records generated can be selectively turned on by usb signal gating module and be connect with the usb signal that BMC is sent out
Input terminal.
To realize that usb signal gating module selectively turns on the input terminal to match with output end, USB in the present embodiment
It is additionally provided with signal control terminal in signal gating module, is used for incoming control signal, by controlling signal gating and output end phase
A matched input terminal.
Usb signal in the present embodiment may include the usb signal that the usb signal that south bridge is sent out and BMC are sent out.Namely
It says, usb signal gating module may include two input terminals, and an input terminal is connect by usb signal with south bridge, another is defeated
Enter end to connect with BMC by usb signal.Since south bridge is different with the usage scenario of BMC, according to user demand, synchronization exists
Input terminal only has south bridge or mono- road usb signals of BMC to be connect with output end, only passes through an a SD Controller and SD
Card slot can be met the needs of users.
Further, in this embodiment signal control terminal may include Enable signals control terminal and the control of Select signals
End, control signal includes Enable signals and Select signals.Wherein, Enable signals are for controlling usb signal gating module
Break-make, Select signals are used for when usb signal gating module be connected to, gating and an input terminal matching of output end.
By taking usb signal includes the usb signal that the usb signal that south bridge is sent out and BMC are sent out as an example, SD card system in the present embodiment
The operation principle of system is referring to Fig. 3.From the figure 3, it may be seen that due to being provided with usb signal gating module, CPU in the SD card system of the application
After being connect with south bridge by DMI buses, usb signal that south bridge is sent out not directly into rear end SD Controller, but
An input terminal I1 of usb signal gating module is initially entered, the usb signal that BMC is sent out also not directly enters the SD of rear end
Controller, but initially enter another input terminal I2 of usb signal gating module.And it is set on usb signal gating module
It is equipped with signal control terminal S and EN, by signal control terminal incoming control signal, the action of usb signal gating module is controlled by outside
The control signal in portion, according to external control signal, the ends I1 for selectively turning on the usb signal that connection south bridge is sent out still connect
The ends I2 for the usb signal that BMC is sent out.After determining gated input terminal, usb signal indicates defeated by output end in Fig. 3 with O
Usb signal is transmitted to the SD Controller and SD card slot of rear end by outlet successively.It can be with the different SD of grafting in SD card slot
Card.And the information in the SD card of rear end, also it can be transmitted to and be connect with input terminal via SD Controller, usb signal gating module
South bridge or BMC.
In the present embodiment, the control logic of usb signal gating module passes through Enable signals control terminal and Select signals
Control terminal is realized.Its truth table is as follows：
| Enable | Select1 | Select0 | Function |
| 0 | X | X | disable |
| 1 | 0 | 1 | Output=Input1 |
| 1 | 1 | 0 | Output=Input2 |
The control logic truth table of table 1USB signal gating modules
By the control logic truth table of the above usb signal gating module it is found that when Enable input be 0, i.e., low level when,
Entire usb signal gating module disconnects, and the output end of usb signal gating module is not connected in any input terminal.Due to this reality
It applies in example, the output end of usb signal gating module is always connected with the input terminal all the way in south bridge or BMC, so, this reality
Enable signals control terminal in applying can force to draw high, and avoid low level appearance.
When Enable inputs 1, i.e. high level, need to determine that usb signal gates mould by Select signals control terminal
The output end of block is connected with which input terminal.Wherein, Select signals control terminal works as Select altogether there are two Pin is inputted
When signal control terminal respective value is 0/1, the output end of usb signal gating module gates I1 input terminals, i.e. the USB line road of south bridge；
When Select signal control terminal respective values are 1/0, the output end of usb signal gating module gates I2 input terminals, i.e. BMC's
USB line road.Theoretically Select signals control terminal can carry out the selection of 4 tunnel inputs, and two-way input is only used in the present embodiment
Selection, the principle and method of 4 tunnel input selections are similar with the principle of 2 tunnel input selections and method, and details are not described herein.
In the present embodiment, hardware may be used in the control logic of Enable signals control terminal and Select signal control terminals
Or the mode of software is realized.Specifically, hardware mode includes the modes such as contact pin jump cap, switch or button；Software mode one
As realized using programmable chip, so that chip is exported high level or low level by programming.It, can when using chip controls mode
Corresponding controlling switch is arranged on existing chip on server master board, such as south bridge is controlled or passed through by BMC pins
Pin controls.In general, the mode of the preferably external contact pin jump cap of hardware mode, software mode select the mode of chip controls.
In conclusion the present embodiment makes different application field by the way that a usb signal gating module is arranged on server master board
It after the usb signal sent out under scape is by usb signal gating module, then connect with the SD Controller and SD card of rear end, and leads to
The selectivity conducting on USB line road can be realized by crossing usb signal gating module.Since in actual use, different input terminals are to SD card
Usage scenario it is different, the setting of usb signal gating module in the present embodiment a so that SD is only arranged in SD card System Back-end
As soon as Controller and SD card slot, can meet the needs of users.Therefore, the structure design of this SD card system only increases
Add the space of a usb signal gating module, but can at least reduce a SD Controller chip and a SD card slot
Space, the occupancy of mainboard PCB space can be greatly reduced, be conducive to improve server master board device density.Moreover, SD
For Controller as storage device controller, cost is higher, and the number of SD Controller is reduced in the SD card system of the application
Amount, can substantially reduce the overall cost of SD card system.
Usb signal gating module may be used a USB Switch chips and specifically may be used in the application
FSUSB73 chips.Storage control SD Controller can select USB224X family chips.Other chips may be used logical
Server master board chip.
Embodiment two
A kind of clothes provided by the embodiment of the present application referring to Fig. 4, Fig. 4 on the basis of Fig. 2 and embodiment illustrated in fig. 3
The flow diagram of the design method for device mainboard SD card system of being engaged in.As shown in Figure 4, server master board SD card system in the application
Design method includes mainly：
S1：One usb signal gating module is set on server master board, the usb signal applied to different scenes is made to pass through
The usb signal gating module is transmitted to SD Controller.
S2：The selectivity that usb signal is carried out using usb signal gating module is connected.
Further, it is led to realize that usb signal gating module carries out selection to the usb signal sent out under different application scene
It is logical, can on usb signal gating module setting signal control terminal, at least two input terminals and an output end.Wherein, at least
Two input terminals receive the usb signal sent out under different application scene respectively, and output end is connect with a SD Controller, letter
Number control terminal is used for incoming control signal, and the input terminal to be matched by controlling signal gating and output end.
Further, in this embodiment two input terminals can be arranged, two input terminals receive the USB that south bridge is sent out respectively
The usb signal that signal and BMC are sent out, output end are connect with a SD Controller, and signal control terminal is for accessing control letter
Number, and the input terminal to be matched by controlling signal gating and output end.
Further, in order to which signal control is better achieved, two kinds of signals and two signals can be utilized in the present embodiment
Control terminal carries out signal control.Specifically, signal control terminal includes Enable signals control terminal and Select signal control terminals, control
Signal processed includes Enable signals and Select signals.Wherein, the Enable signals of Enable signals control terminal are for controlling USB
The Select signals of the break-make of signal gating module, Select signal control terminals are used for when usb signal gating module is connected to, choosing
The logical input terminal to match with output end.
The part that the structure of SD card module and operation principle and the embodiment are not described in detail in the application, please refers to
Fig. 2 and embodiment shown in Fig. 3 one, the two can mutual reference, details are not described herein.
The above is only the specific implementation mode of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case where not departing from spirit herein or range.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. a kind of SD card system applied to server master board, which is characterized in that the SD card system includes：Usb signal gates
Module, a SD Controller and a SD card slot, the usb signal gating module include at least two input terminals and
One output end, and the output end of the usb signal gating module is sequentially connected SD Controller and SD card slot；
The usb signal gating module, the usb signal for receiving different application scene by input terminal, and be selectively connected
The input terminal to match with output end；
Different SD cards can be stored in the SD card slot.
2. a kind of SD card system applied to server master board according to claim 1, which is characterized in that the USB letters
Signal control terminal is additionally provided on number gating module, the signal control terminal is used for incoming control signal, and passes through the control
The input terminal that signal gating matches with output end.
3. a kind of SD card system applied to server master board according to claim 2, which is characterized in that the signal control
End processed includes Enable signals control terminal and Select signal control terminals, and the control signal includes Enable signals and Select
Signal, the Enable signals are used to control the break-make of usb signal gating module, and the Select signals are for working as usb signal
When gating module is connected to, the input terminal to match with output end is gated.
4. a kind of SD card system applied to server master board according to claim 3, which is characterized in that the Enable
The control logic of signal control terminal and Select signal control terminals, by the way of external contact pin jump cap or the side of chip controls
Formula.
5. a kind of SD card system applied to server master board according to claim 1, which is characterized in that the SD
Controller is USB224X family chips.
6. a kind of SD card system applied to server master board according to claim 1, which is characterized in that the USB letters
Number gating module is a USB Switch chips.
7. a kind of SD card system applied to server master board according to any one of claim 1-6, feature exist
In the usb signal includes the usb signal that the usb signal that south bridge is sent out and BMC are sent out.
8. a kind of design method of server master board SD card system, which is characterized in that the SD card system includes：Usb signal selects
Logical module, a SD Controller and a SD card slot, the method includes：
One usb signal gating module is set on server master board, the usb signal applied to different scenes is made to pass through the USB
Signal gating module transfer is to SD Controller；
The selectivity that usb signal is carried out using the usb signal gating module is connected.
9. a kind of design method of server master board SD card system according to claim 8, which is characterized in that the USB
Signal control terminal, at least two input terminals and an output end, at least two input terminal are provided in signal gating module
For receiving usb signal, the output end is connect with SD Controller, and the signal control terminal is used for incoming control signal,
And the input terminal to be matched with output end by the control signal gating.
10. a kind of design method of server master board SD card system according to claim 9, which is characterized in that the letter
Number control terminal includes Enable signals control terminal and Select signal control terminals, the control signal include Enable signals and
Select signals, the Enable signals are used to control the break-make of usb signal gating module, and the Select signals are for working as
When usb signal gating module is connected to, the input terminal to match with output end is gated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288810.XA CN108595358A (en) | 2018-04-03 | 2018-04-03 | A kind of SD card system and its design method applied to server master board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288810.XA CN108595358A (en) | 2018-04-03 | 2018-04-03 | A kind of SD card system and its design method applied to server master board |
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| CN201810288810.XA Withdrawn CN108595358A (en) | 2018-04-03 | 2018-04-03 | A kind of SD card system and its design method applied to server master board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110347438A (en) * | 2019-07-16 | 2019-10-18 | Oppo广东移动通信有限公司 | Function selection method, function selection device and mobile terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201435077Y (en) * | 2009-07-21 | 2010-03-31 | 上海摩波彼克半导体有限公司 | Circuit structure supporting access of multi-SD card slave device |
| US20110130952A1 (en) * | 2009-11-30 | 2011-06-02 | Funai Electric Co., Ltd. | Switching Control System and Car Navigation System |
| CN105653410A (en) * | 2015-12-29 | 2016-06-08 | 湖南长城银河科技有限公司 | Device and method based on printing and outputting of debugging information of Phytium platform, and computer |
| CN106844277A (en) * | 2017-02-06 | 2017-06-13 | 联想(北京)有限公司 | A kind of server and its information transferring method |
| CN206684646U (en) * | 2017-04-24 | 2017-11-28 | 郑州云海信息技术有限公司 | A kind of RAID memory planes based on double SD cards |
-
2018
- 2018-04-03 CN CN201810288810.XA patent/CN108595358A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201435077Y (en) * | 2009-07-21 | 2010-03-31 | 上海摩波彼克半导体有限公司 | Circuit structure supporting access of multi-SD card slave device |
| US20110130952A1 (en) * | 2009-11-30 | 2011-06-02 | Funai Electric Co., Ltd. | Switching Control System and Car Navigation System |
| CN105653410A (en) * | 2015-12-29 | 2016-06-08 | 湖南长城银河科技有限公司 | Device and method based on printing and outputting of debugging information of Phytium platform, and computer |
| CN106844277A (en) * | 2017-02-06 | 2017-06-13 | 联想(北京)有限公司 | A kind of server and its information transferring method |
| CN206684646U (en) * | 2017-04-24 | 2017-11-28 | 郑州云海信息技术有限公司 | A kind of RAID memory planes based on double SD cards |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110347438A (en) * | 2019-07-16 | 2019-10-18 | Oppo广东移动通信有限公司 | Function selection method, function selection device and mobile terminal |
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