CN102902343A - Network device and enabling method thereof - Google Patents

Network device and enabling method thereof Download PDF

Info

Publication number
CN102902343A
CN102902343A CN2011102172808A CN201110217280A CN102902343A CN 102902343 A CN102902343 A CN 102902343A CN 2011102172808 A CN2011102172808 A CN 2011102172808A CN 201110217280 A CN201110217280 A CN 201110217280A CN 102902343 A CN102902343 A CN 102902343A
Authority
CN
China
Prior art keywords
enable
signal
enable signal
network equipment
select
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2011102172808A
Other languages
Chinese (zh)
Other versions
CN102902343B (en
Inventor
蔡志福
沈家庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Realtek Semiconductor Corp
Original Assignee
Realtek Semiconductor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Realtek Semiconductor Corp filed Critical Realtek Semiconductor Corp
Priority to CN201110217280.8A priority Critical patent/CN102902343B/en
Publication of CN102902343A publication Critical patent/CN102902343A/en
Application granted granted Critical
Publication of CN102902343B publication Critical patent/CN102902343B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention discloses a network device and an enabling method thereof. The method comprises the following steps of: when the network device is changed from zero bias voltage to bias voltage or a main device is started, providing an enabling signal in the network device to enable an application circuit in the network device; and if a data link is produced between the network device and the main device, enabling or disabling the application circuit by the main device through a predetermined footprint.

Description

Network equipment and its enabled method
Technical field
The invention provides a kind of network equipment, the enabling or the method for forbidden energy of especially a kind of network equipment.
Background technology
In modern consumer, under the prerequisite of environmental protection, the requirement of power saving increases day by day.With respect to main device, early stage system all can keep a pin position as the function of chip enable (Chip Enable/Power Down), allows chip only stay the chip enable circuit under the state of forbidden energy (Disable/Power Down) and reaches power saving.But when main device (host) is started shooting or chip must to make first this pin position when beginning bias voltage is arranged be the state that makes chip enable, could use this chip or carry out the chip setting, the puzzlement that usually causes main device start to set, therefore, how can allow again default degree of freedom be arranged and reach the energy-conservation purpose of chip in the burden that does not increase main device operation system, namely to become the problem that is worth at present research.
Afterwards, because main device software (or operating system OS) further developed so-called " plug " (Plug and Play) chip with the industry that cooperates of the module hardware of system, but i.e. a kind of chip of plug and play.And on using, the plug chip is not enable (Chip Enable/Power Down) pin position, therefore, if the plug chip wants to enter battery saving mode, needs to give an order to control by the mode of main device by software.Yet, giving an order the battery saving mode of control chip by the mode of software, it is economized electrical efficiency and compares and has the chip that enables the pin position, still is apparent not enough.
Summary of the invention
One of purpose of the present invention is, does not increase under the burden of main device operation system start setting, and a kind of device or method are provided, and can reduce the required power consumption of plug-in module.
One of purpose of the present invention is, when reducing the required power consumption of plug-in module, can provide the degree of freedom of the enable signal of plug-in module.
The present invention discloses a kind of network equipment, be arranged in the computer system, this computer system operation is in start period or a working hour, and this network equipment comprises: a communication interface; One enable circuits is coupled to this communication interface, in order to produce an inner enable signal; One application circuit is coupled to this enable circuits, in order to carry out the running of circuit according to this inside enable signal; Wherein, in this start period, this enable circuits produces this inside enable signal in advance to enable this application circuit; And in this working hour, the outside enable indication that this enable circuits is inputted by this communication interface produces this inside enable signal, whether to determine forbidden energy or to enable this application circuit.
The present invention has also disclosed the method that is applied to network equipment, and it comprises following steps: produce an inner enable signal; If this network equipment is started shooting the period in this, then according to the inside enable signal that produces in advance, enable the running of an application circuit; And if network equipment is in this working hour, an outside enable indication of then passing through to input produces this inside enable signal, whether to determine forbidden energy or to enable this application circuit.
For making your juror for structure purpose of the present invention and effect further understanding and approval be arranged, hereby cooperate the icon example to be described in detail as follows.
Description of drawings
Fig. 1 is the synoptic diagram of computer system 10 of the present invention;
Fig. 2 is an embodiment synoptic diagram of enable circuits 102 of the present invention; And
Fig. 3 is for being used for the method flow diagram of network equipment of the present invention.
The primary clustering symbol description
10 computer system 10a master devices
10b network equipment 101 communication interfaces
102 enable circuits, 103 application circuits
201 first multiplexers, 202 Polarity Control unit
203 second multiplexer s301～s303 steps
R1 the first buffer R2 the second buffer
The outside enable indication of R3 the 3rd buffer OCE
The inner enable signal CS of ICE control signal
CE1 the first enable signal CE2 the second enable signal
S1 enables to select signal S2 polarity control signal
The S3 pin is selected signal
Embodiment
The block diagram of Fig. 1 is for disclosing the computer system 10 according to one embodiment of the invention.Computer system 10 operates in start period or a working hour, and it comprises a main device 10a and a network equipment 10b who couples main device 10a.The network equipment 10b that is arranged in the computer system 10 also comprises: a communication interface 101, an enable circuits 102, be coupled to this communication interface 101, in order to produce an inner enable signal ICE, an application circuit 103, be coupled to this enable circuits 102, be used for carrying out the running of circuit according to this inside enable signal ICE.Wherein, in this start period, this enable circuits 102 produces inner enable signal ICE in advance to enable this application circuit 103 and in this working hour, the outside enable indication OCE that this enable circuits 102 is inputted by this communication interface 101 produces this inside enable signal ICE, whether to determine forbidden energy or to enable this application circuit 103.According to the application circuit 103 of an embodiment, can be physical layer circuit (PHY) or medium access circuit (MAC).
Take network equipment 10b as an Ethernet module as example, after data link (data connection) general reference network equipment 10b and this master (host) install 10a and finish friendship and hold (hand shaking), can formally transmit and receive data.(ISA) module is example take network equipment 10b as Industry Standard Architecture, feedback bit shift register (LFSR) (not shown) when the linearity of communication interface 101 in this Industry Standard Architecture (ISA) module and be output as when enabling (enable active), network equipment 10b installed 10a with master (host) and began data link (data connection) this moment.Communication interface 101 also comprises a code translator (not shown), address signal and control signal that decodable code is provided by main device 10a.
Network equipment 10b also can be universal serial (USB) device, and aforesaid Ethernet module or Industry Standard Architecture (ISA) are the cold plug of use, and universal serial (USB) is hot plug; The data link of universal serial is defined as network equipment 10b and this master (host) device 10a and couples mutually and lead (host) device 10a and begins power supply to behind the network equipment 10b via this communication interface 101, and main (host) installs 10a and network equipment 10b can formally transmit and during receive data.Above-mentioned predetermined pin position can be by selecting in general purpose import and export (GPIO) the pin position in the communication interface 101.
On the market, the position, pin position that enables the pin position of network equipment 10b and polarity may not be certain can be unified, so usually cause the puzzlement in main (host) device 10a setting.Therefore, one embodiment of the invention are that low-voltage enables or high voltage enables or predetermined pulse enables about the polarity that enables that enable circuits 102 notifies the information of this main device 10a described predetermined pin position (pin) and enable circuits 102 to set inner enable signal ICE according to the instruction of this main device 10a via this communication interface 101 further.
The advantage that predetermined pulse enables is, network equipment 10b and main device 10a often have some predetermined pulse signals when doing data link (data connection) are (reserved) that keep in this communication interface 101, under the consideration of saving network equipment 10b pin position, main device 10a can transmit a stick signal to this network equipment 10b from this communication interface 101, and this network equipment 10b can be learnt by the pin position in this communication interface 101 and enable or forbidden energy and need not set and additionally enable the pin position.
Fig. 2 is for disclosing the embodiment about enable circuits of the present invention, and it comprises one first multiplexer 201, in order to enable to select signal S according to one 1Optionally export one first enable signal CE 1Or one second enable signal CE 2With as this inside enable signal ICE, wherein, the first enable signal CE 1Be independent of this outside enable indication OCE, and the second enable signal CE 2Be relevant to this outside enable indication OCE; One Polarity Control unit 202 is in order to foundation one polarity control signal S 2To determine the polarity of inner enable signal ICE; And one second multiplexer 203, be coupled to a plurality of pins in the communication interface 101, in order to select signal S according to a pin 3Determine a pin from these pins, to export outside enable indication OCE to polarity control module 202.
Enable circuits 102 also comprises one first buffer R 1, enable to select signal S in order to store one first temporary value to control this 1, wherein, in the start period, this first temporary value control enables to select signal S 1Make this first enable signal CE 1As this inside enable signal ICE; And in working hour, this first temporary value control enables to select signal S 1Make this second enable signal CE 2As this inside enable signal ICE.
Enable circuits 102 evils comprise one second buffer R 2, in order to store one second temporary value to control this polarity control signal S 2And one the 3rd buffer R 3, select signal S in order to store one the 3rd temporary value to control this pin 3
Fig. 3 is that it comprises following steps about a kind of method that is applied to network equipment:
S301: produce an inner enable signal ICE;
S302: if this network equipment 10b starts shooting the period in this, then according to the inside enable signal ICE that produces in advance, enable the running of an application circuit 103;
S303: otherwise, if the outside enable indication OCE that network equipment 10b in this working hour, then passes through to input produces this inside enable signal ICE, whether to determine forbidden energy or to enable this application circuit 103.Preferably, enable to select signal S according to one 3Optionally export one first enable signal CE 1Or one second enable signal CE 2With as this inside enable signal ICE, wherein, this first enable signal CE 1Be independent of this outside enable indication OCE, and this second enable signal CE 2Be relevant to this outside enable indication OCE, and store one first temporary value and enable to select signal S to control this 1, wherein, in this start period, this enables to select signal S this first temporary value control 1Make this first enable signal CE 1As this inside enable signal ICE 1And in this working hour, this enables to select signal S this first temporary value control 1Make this second enable signal CE 2As this inside enable signal ICE, and wherein according to a polarity control signal S 2To determine the polarity of this inside enable signal ICE.
By the above embodiments, can be well understood to, when network equipment 10b in when start, enable circuits 102 can be by with reference to the first buffer R 1Default value, producing in advance inner enable signal ICE to application circuit 103, can be so that network equipment 10b need not wait for outside enable indication OCE can be activated.When start is finished, when network equipment 10b enables the pin position to carry out the control of power saving according to outside enable indication OCE by one again.
In addition, for preventing enabling the pin position and main device 10a encounters difficulties in the coiling of circuit board, in the present embodiment, the decision that enables the pin position can be by the 3rd buffer R 3Control, thus, can increase the degree of freedom that use the pin position.
Moreover for the polarity of signal, the present invention also can pass through the second buffer R 2Control, prevent network equipment 10b and main device 10a when the polarity of signal clashes, and cause the generation of misoperation.
The above only is exemplary embodiment of the present invention, not should with the scope implemented of restriction the present invention.The equalization of namely generally doing according to the present patent application claim changes and modifies, and all should still belong in the scope that patent of the present invention contains, sincerely please your juror's explicit example for reference, and pray Hui Zhun, be that institute is to praying.

Claims (14)

1. a network equipment is arranged in the computer system, and described computer system operation is in start period or a working hour, and described network equipment comprises:
One communication interface;
One enable circuits is coupled to described communication interface, in order to produce an inner enable signal;
One application circuit is coupled to described enable circuits, in order to carry out the running of circuit according to described inner enable signal;
Wherein, in the described start period, described enable circuits produces in advance described inner enable signal so that the described application circuit of energy; And in described working hour, the outside enable indication that described enable circuits is inputted by described communication interface produces described inner enable signal, whether to determine forbidden energy or to enable described application circuit.
2. network equipment according to claim 1, wherein, described enable circuits comprises:
One first multiplexer is in order to enable to select output one first enable signal of signal-selectivity or one second enable signal with as this inside enable signal according to one;
Wherein, described the first enable signal is independent of described outside enable indication, and described the second enable signal is relevant to described outside enable indication.
3. network equipment according to claim 2, wherein, described enable circuits comprises:
One first buffer is in order to store one first temporary value to control the described signal that enables to select;
Wherein, in the described start period, the described first temporary value is controlled and is describedly enabled to select signal to make described the first enable signal as described inner enable signal; And in described working hour, the described first temporary value is controlled and is describedly enabled to select signal to make described the second enable signal as described inner enable signal.
4. network equipment according to claim 1, wherein, described enable circuits comprises:
One Polarity Control unit, in order to according to a polarity control signal to determine the polarity of described inner enable signal.
5. network equipment according to claim 4, wherein, described enable circuits comprises:
One second buffer is in order to store one second temporary value to control described polarity control signal.
6. described network equipment according to claim 1, wherein, described enable circuits comprises:
One second multiplexer is coupled to a plurality of pins in the described communication interface, in order to select signal to determine a pin from these pins according to a pin, to export described outside enable indication.
7. network equipment according to claim 6, wherein, described enable circuits comprises:
One the 3rd buffer is selected signal in order to store one the 3rd temporary value to control described pin.
8. method that is applied to network equipment, it comprises:
Produce an inner enable signal;
If described network equipment in the start period, then according to the inside enable signal that produces in advance, enables the running of an application circuit; And
If the outside enable indication that described network equipment in working hour, then passes through to input produces described inner enable signal, whether to determine forbidden energy or to enable described application circuit.
9. method according to claim 8 also comprises:
Enable to select output one first enable signal of signal-selectivity or one second enable signal with as described inner enable signal according to one, wherein, described the first enable signal is independent of described outside enable indication, and described the second enable signal is relevant to described outside enable indication.
10. method according to claim 9 also comprises:
Store one first temporary value to control the described signal that enables to select, wherein, in the described start period, described first keeps in value controls and describedly enables to select signal to make described the first enable signal as described inner enable signal; And in described working hour, this first temporary value is controlled and is describedly enabled to select signal to make described the second enable signal as described inner enable signal.
11. method according to claim 8 also comprises:
Foundation one polarity control signal is to determine the polarity of described inner enable signal.
12. method according to claim 11 also comprises:
Store one second temporary value to control described polarity control signal.
13. method according to claim 8 also comprises:
Select signal to determine a pin from these pins according to a pin, to export described outside enable indication.
14. method according to claim 13 also comprises:
Store one the 3rd temporary value and select signal to control described pin.
CN201110217280.8A 2011-07-29 2011-07-29 Network equipment and its enabled method Active CN102902343B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110217280.8A CN102902343B (en) 2011-07-29 2011-07-29 Network equipment and its enabled method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110217280.8A CN102902343B (en) 2011-07-29 2011-07-29 Network equipment and its enabled method

Publications (2)

Publication Number Publication Date
CN102902343A true CN102902343A (en) 2013-01-30
CN102902343B CN102902343B (en) 2015-10-21

Family

ID=47574633

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110217280.8A Active CN102902343B (en) 2011-07-29 2011-07-29 Network equipment and its enabled method

Country Status (1)

Country Link
CN (1) CN102902343B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6212645B1 (en) * 1998-10-09 2001-04-03 Mediaq Inc. Programmable and flexible power management unit
US20080244108A1 (en) * 2007-03-29 2008-10-02 Abramson Darren L Per-port universal serial bus disable
CN101689101A (en) * 2007-05-03 2010-03-31 马维尔国际贸易有限公司 Device with ic, soc or sip having one or more remotely enabled module and methods for selling the device
CN102057344A (en) * 2008-06-12 2011-05-11 先进微装置公司 Sleep processor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6212645B1 (en) * 1998-10-09 2001-04-03 Mediaq Inc. Programmable and flexible power management unit
US20080244108A1 (en) * 2007-03-29 2008-10-02 Abramson Darren L Per-port universal serial bus disable
CN101689101A (en) * 2007-05-03 2010-03-31 马维尔国际贸易有限公司 Device with ic, soc or sip having one or more remotely enabled module and methods for selling the device
CN102057344A (en) * 2008-06-12 2011-05-11 先进微装置公司 Sleep processor

Also Published As

Publication number Publication date
CN102902343B (en) 2015-10-21

Similar Documents

Publication Publication Date Title
US7447930B2 (en) USB control circuit for saving power and the method thereof
CN104063290B (en) Handle system, the method and apparatus of time-out
CN104050114B (en) Synchronous port enters the system of low power state, method and apparatus
US8417864B2 (en) Cascade-able serial bus device with clock and management and cascade methods using the same
CN101329663B (en) Apparatus and method for implementing pin time-sharing multiplexing
CN107409056A (en) Use the communication path of repeater selective enabling first and the second communication path
US8923088B2 (en) Solid state storage device with sleep control circuit
CN102998982B (en) Power control circuit, the semiconductor devices including it
CN103765345A (en) Method and apparatus to reduce idle link power in platform
CN104272388A (en) Ultra-deep power-down mode for memory devices
JP2015094945A (en) Power management for physical layer interface connecting a display panel to display transmit engine
CN104345869B (en) Secure digital input/output unit, system and its control method
US20150227187A1 (en) Data storage device, method thereof, and data processing system including the same
CN104834620A (en) SPI (serial peripheral interface) bus circuit, realization method and electronic equipment
CN102855428B (en) A kind of method of controlling security of computing machine and this computing machine
US20150378427A1 (en) Apparatuses and methods of entering unselected memories into a different power mode during multi-memory operation
CN103793012A (en) Double-host integration physical isolation safety computer
CN102136082B (en) High-speed and low-power-consumption SD (Secure Digital) card
CN104850417A (en) Method for information processing and electronic equipment
CN102902343A (en) Network device and enabling method thereof
CN204706031U (en) Serial peripheral equipment interface SPI bus circuit and electronic equipment
CN108021521B (en) System for changing system topology configuration based on BMC and cascade configuration method
CN111143275A (en) IP management and power consumption optimization system and method
CN205827396U (en) A kind of enhancement mode unifies read write line
CN103747239A (en) Method for entering debugging mode and smart television

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant