CN105163376B - RF SoC, control method and communication data transmission method - Google Patents
RF SoC, control method and communication data transmission method Download PDFInfo
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- CN105163376B CN105163376B CN201510547976.5A CN201510547976A CN105163376B CN 105163376 B CN105163376 B CN 105163376B CN 201510547976 A CN201510547976 A CN 201510547976A CN 105163376 B CN105163376 B CN 105163376B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/76—Architectures of general purpose stored program computers
- G06F15/78—Architectures of general purpose stored program computers comprising a single central processing unit
- G06F15/7807—System on chip, i.e. computer system on a single chip; System in package, i.e. computer system on one or more chips in a single package
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
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- Computing Systems (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transceivers (AREA)
Abstract
A kind of RF SoC, control method and communication data transmission method, the RF SoC include：Radio frequency state machine and microcontroller, the radio frequency state machine are mutually coupled with the microcontroller；The microcontroller is configured to be in the first power supply state or the second power supply state, and the power consumption that the microcontroller is in first power supply state is less than the power consumption in the second power supply state；The power supply state that the radio frequency state machine is suitable for controlling the microcontroller upon actuation is the first power supply state.System power dissipation can be reduced by this RF SoC, control method and communication data transmission method.
Description
Technical field
The present invention relates to a kind of communications field more particularly to RF SoC, control method and communication data transfer sides
Method.
Background technology
With the continuous development of computer and technology of Internet of things, ISM band, the especially less than short distance of 1GHz frequencies,
The rapid development of low-rate wireless communication technology so that meet IEEE802.15.4G or meet the data of micro power radio communication
The very large Internet of things system of product formation of transport protocol.With the bluetooth using mainstream, the Networking protocol of the complexity such as WIFI
System compare, above-mentioned Internet of things system has the advantages that some are most important：It is low cost first, without a large amount of
Protocol stack, this is allowed them to using more low speed, more cheap microprocessor；Followed by low-power consumption, better simply agreement add
Upper strong error correcting capability helps to reduce the radio transmitting time；It is finally long distance transmission, this makes networking relay quantity
Greatly reduce, routing series is reduced, and transmitted data amount is reduced, and saves transmission time.
Currently, most scheme using RF transceiver, microcontroller, memory, radio frequency matching circuit, antenna, specially
Internet of things node unit and center cell are formed with interface (such as SPI/UART/USB) device；These devices are mutual indepedent, lead to
It crosses between chip port into row data communication and transmission, just so that system being capable of normal operation.Such radio frequency system power consumption
It is higher.
The power consumption of radio frequency system needs to be further decreased at present.
Invention content
Problems solved by the invention is how to reduce the power consumption of RF SoC.
To solve the above problems, the present invention provides a kind of RF SoC, including：Radio frequency state machine and microcontroller
Device, the radio frequency state machine are mutually coupled with the microcontroller；
The radio frequency state machine and the microcontroller can be configured at the first power supply state or the second power supply shape
State, the power consumption in first power supply state are less than the power consumption in the second power supply state；
The power supply state that the radio frequency state machine is suitable for controlling the microcontroller upon actuation is the first power supply state.
Optionally, RF SoC further includes：Radio frequency state machine isolation circuit two and microcontroller isolation circuit one；
First output end of the radio frequency state machine is connected to the first input end of the radio frequency state machine isolation circuit two,
The second output terminal of the radio frequency state machine is connected to the second input terminal of the microcontroller isolation circuit one, the radio frequency shape
The input terminal of state machine is connected to the output end of the radio frequency state machine isolation circuit two；
First output end of the microcontroller is connected to the first input end of the microcontroller isolation circuit one, described
Second input terminal of microcontroller is connected to the second input terminal of the radio frequency state machine isolation circuit two, the microcontroller
Input terminal is connected to the output end of the microcontroller isolation circuit one.
Optionally, RF SoC further includes：Further include the power supply circuit two of the radio frequency state machine and the micro-control
The power supply circuit one of device processed；
The microcontroller is coupled to the enable signal input terminal of the power supply circuit two of the radio frequency state machine, is suitable for control
The power supply state of the radio frequency state machine；
The radio frequency state machine is coupled to the enable signal input terminal of the power supply circuit one of the microcontroller, is suitable for generating
Corresponding control signal is to control the power supply state of the microcontroller.
Optionally, the power supply circuit one of the power supply circuit two of the radio frequency state machine and the microcontroller includes low pressure
Difference linear voltage-stabilizing circuit.
Optionally, RF SoC further includes：Three and of power supply circuit of fifo circuit, the fifo circuit
The isolation circuit three of the fifo circuit；
The microcontroller and the radio frequency state machine are coupled to the elder generation by the fifo circuit isolation circuit
Into first going out circuit；
The microcontroller and radio frequency state machine are coupled to the enable signal of the power supply circuit three of the fifo circuit
Input terminal, suitable for generating corresponding control signal to control the power supply state of the fifo circuit.
Optionally, RF SoC further includes：Encoder and modulator, the encoder and corresponding power supply of modulator
Circuit four and the corresponding isolation circuit of the encoder and modulator four；
The radio frequency state machine is coupled to the encoder by the encoder and the corresponding isolation circuit of modulator four
And modulator；
The radio frequency state machine is coupled to the enable signal input terminal of the power supply circuit of the encoder and modulator, is suitable for
Corresponding control signal is generated to control the power supply state of the encoder and modulator.
Optionally, RF SoC further includes：Demodulator and decoder, the corresponding power supply of the demodulator and decoder
Circuit five and the corresponding isolation circuit of the demodulator and decoder five；
The radio frequency state machine is coupled to the demodulator by the corresponding isolation circuit of the demodulator and decoder five
And decoder；
The radio frequency state machine is coupled to the enable signal input of the corresponding power supply circuit of the demodulator and decoder five
End, suitable for generating corresponding control signal to control the power supply state of the demodulator and decoder.
Optionally, RF SoC further includes：The power supply of rf analog front-end circuit, the rf analog front-end circuit
The isolation circuit six of circuit six and the rf analog front-end circuit；
The radio frequency state machine is coupled to the radio frequency analog by the isolation circuit six of the rf analog front-end circuit
Front end；
The radio frequency state machine is coupled to the enable signal input terminal of the power supply circuit of the rf analog front-end, is suitable for production
Raw corresponding control signal is to control the power supply state of the rf analog front-end circuit.
Optionally, the periphery of the rf analog front-end circuit position is provided with substrate contact hole, p-well contact hole, N traps connect
Contact hole.
The embodiment of the present invention also provides a kind of control method of RF SoC, and the RF SoC includes：It penetrates
Frequency state machine and microcontroller, the radio frequency state machine are mutually coupled with the microcontroller, and the radio frequency state machine is starting
Afterwards, the power supply state for controlling the microcontroller is the first power supply state；
When needing to wake up the microcontroller, the power supply state of the microcontroller is cut from first power supply state
It is changed to the second power supply state, the power consumption that the microcontroller is in first power supply state is less than in the second power supply state
Power consumption.
Optionally, the radio frequency state machine, which starts, includes：It is opened by the microcontroller before the communication data transfer
Move the radio frequency state machine.
Optionally, the control method of the RF SoC further includes：After communication data transfer, the radio frequency state machine
The power supply state for controlling the microcontroller is switched to the second power supply state from first power supply state.
Optionally, the control method of the RF SoC further includes：When being triggered by external event, the microcontroller
The power supply state of device is switched to the second power supply state from first power supply state.
Optionally, the control method of the RF SoC further includes：It is described micro- after the RF SoC starts
Controller is in second power supply state.
Optionally, the RF SoC further includes：Fifo circuit, encoder, modulator, demodulator, decoding
The control method of device and rf analog front-end, the RF SoC further includes：The microcontroller or radio frequency state machine
According to the flow of communication data transfer, alternating control the RF SoC fifo circuit, encoder and modulator,
The power supply state of demodulator and decoder and rf analog front-end.
The embodiment of the present invention also provides a kind of method of the communication data transfer of RF SoC, is on the radio frequency tablet
System includes：Radio frequency state machine and microcontroller, the radio frequency state machine are mutually coupled with the microcontroller, including：
The power supply state of the microcontroller is the second power supply state；
The microcontroller controls the radio frequency state machine and starts；
Upon actuation, the power supply state for controlling the microcontroller is the first power supply state to the radio frequency state machine, described
Power consumption when power consumption when microcontroller is in first power supply state is less than in second power supply state.
Optionally, it is controlled before the radio frequency state machine starts in the microcontroller and further includes：
The microcontroller controls the fifo circuit and starts, and the communication number is sent to the fifo circuit
According to.
Optionally, after the radio frequency state machine controls the microcontroller power-off or enters low power consumpting state, further include：
The radio frequency state machine controls the encoder and modulator firing, and the communication data is encoded and adjusted
System；
The radio frequency state machine controls the rf analog front-end and starts, and sends the coding and the modulated communication
Data.
Optionally, after the radio frequency state machine controls the microcontroller power-off or enters first power supply state, also
Including：
The radio frequency state machine controls the rf analog front-end and starts, and receives the communication data；
The radio frequency state machine controls the demodulator and decoder and starts, and the communication data is demodulated and decoded；
The radio frequency state machine controls the fifo circuit and starts, and the communication is sent to the fifo circuit
Data；
The power supply state that the radio frequency state machine controls the microcontroller switches to second power supply state, the elder generation
Into circuit is first gone out the communication data is sent to the microcontroller.
Optionally, the radio frequency state machine controls the power supply state of the microcontroller after the first power supply state, also to wrap
It includes：
The radio frequency state machine control timer starts；
The power supply state of the timer expiry, the radio frequency state machine is the first power supply state, the radio frequency state machine
Power consumption when in the first power supply state is less than power consumption when starting.
The embodiment of the present invention also provides a kind of radio frequency chip, and the RF SoC positioned at radio frequency chip includes radio frequency analog
Front-end circuit, radio frequency state machine and microcontroller, which is characterized in that including：
The periphery that the radio frequency chip corresponds to the rf analog front-end circuit position is provided with substrate contact hole, p-well connects
Contact hole, N trap contact holes；
The microcontroller is configured to be in the first power supply state or the second power supply state, and the microcontroller is in
The power consumption of first power supply state is less than the power consumption in the second power supply state；
The power supply state that the radio frequency state machine is suitable for controlling the microcontroller upon actuation is the first power supply state.
Compared with prior art, technical scheme of the present invention has the following advantages：
Radio frequency state machine and microcontroller are integrated in the same chip, since the power consumption of chip interior signal transmission is far low
The power consumption of signal transmission between chip, so as to reduce the power consumption of radio frequency system.Due to after the startup of radio frequency state machine, controlling
The power supply state for making the microcontroller is the first power supply state, and the microcontroller is in the power consumption of first power supply state
Less than the power consumption in the second power supply state, to reduce the power consumption of radio frequency system.
Further, before due to the radio frequency state machine of RF SoC, microcontroller, fifo circuit, radio frequency analog
Terminal circuit etc. has corresponding power supply circuit so that each section power supply of radio frequency system is isolated, the work of different circuits
In different power domains, so as to easily control the power supply state of different circuits, and the need of signal integrity can be met
It asks.
In addition, by being provided with substrate contact hole on the periphery of rf analog front-end circuit position, p-well contact hole, N traps connect
Contact hole can prevent signal cross-talk, meet the needs of signal integrity.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of RF SoC in the embodiment of the present invention；
Fig. 2 is that a kind of radio frequency state machine isolation circuit two and the connection of microcontroller isolation circuit one are closed in the embodiment of the present invention
It is schematic diagram；
Fig. 3 is a kind of structural schematic diagram of RF SoC in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another RF SoC in the embodiment of the present invention；
Fig. 5 is a kind of flow chart of the transmission method of communication data in the embodiment of the present invention；
Fig. 6 is the flow chart of another communication data transmission method in the embodiment of the present invention；
Fig. 7 is the flow chart of another communication data transmission method in the embodiment of the present invention；
Fig. 8 is a kind of page of erasing flow chart in the embodiment of the present invention；
Fig. 9 is a kind of word programming flow diagram in the embodiment of the present invention.
Specific implementation mode
As previously mentioned, the power consumption of RF SoC still needs to be further decreased at present.
Through inventor the study found that mainly just concentrating on rationally opening to radio-frequency receiving-transmitting for the power consumption control of radio node
It shuts, after the mode of generally use is wake-up, according to route need send or direct broadcast transmission nodal information.Cause
This, the rational each process for handling radio-frequency receiving-transmitting process, is the key that Low-power Technology.With the development of semiconductor technology,
Mixed signal (Mix-Signal) design is more and more common, can radio circuit and microcontroller circuit be integrated in system on chip
(SOC) have become possibility, if by the I/O port data transmission between chip, be integrated into chip interior signal transmission, for
The reduction of power consumption index will play very crucial effect.
In embodiments of the present invention, radio frequency state machine and microcontroller are integrated in the same chip, due to chip interior
The power consumption of signal transmission is far below the power consumption of signal transmission between chip, so as to reduce the power consumption of radio frequency system.Due to
After radio frequency state machine starts, the power supply state for controlling the microcontroller is the first power supply state, and the microcontroller is in institute
The power consumption for stating the first power supply state is less than the power consumption in the second power supply state, to reduce the power consumption of radio frequency system.
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Fig. 1 is a kind of structural schematic diagram of RF SoC in the embodiment of the present invention, is illustrated below in conjunction with Fig. 1.
In embodiments of the present invention, RF SoC 10 may include：Radio frequency state machine 12 and microcontroller 11, institute
Radio frequency state machine 12 is stated to couple with 11 phase of the microcontroller；The microcontroller 11 is configured to be in the first power supply state
Or second power supply state, first power supply state are off-position or low power consumpting state；The radio frequency state machine 12 is suitable for
After startup, the power supply state for controlling the microcontroller 11 is the first power supply state.The power that first power supply state provides is less than
The power that second power supply state provides.In an embodiment of the present invention, it is microampere rank in the first power supply state power consumption, and low
The power consumption of power consumption state is only Naan rank.First power supply state can solve power supply circuit start-up study for low power consumpting state and ask
Topic improves running efficiency of system.
In specific implementation, RF SoC 10 can also include：Radio frequency state machine isolation circuit two and microcontroller
Isolation circuit one, wherein microcontroller isolation circuit one are isolation circuit 1, and radio frequency state machine isolation circuit two is isolation electricity
Road 2 121.Connection relation such as Fig. 2 of microcontroller 11, isolation circuit 1, radio frequency state machine 12 and isolation circuit 2 121
It is shown.
First output end of the radio frequency state machine 12 is connected to the first input end of the isolation circuit 2 121, described
The second output terminal of radio frequency state machine 12 is connected to the second input terminal of the isolation circuit 1, the radio frequency state machine 12
Input terminal be connected to the output end of the isolation circuit 2 121；First output end of the microcontroller 11 is connected to described
Second input terminal of the first input end of isolation circuit 1, the microcontroller 11 is connected to the isolation circuit 2 121
Second input terminal, the input terminal of the microcontroller 11 are connected to the output end of the isolation circuit 1.
The radio frequency state machine 12 and the microcontroller 11 have corresponding isolation circuit, i.e., after power down, signal
Input cannot be hanging.In an embodiment of the present invention, microcontroller 11 switches to the first power supply state by the second power supply state
Process is as follows：Microcontroller 11 controls radio frequency state machine 12 and starts first；Secondly the status signal of microcontroller 11 itself is exported
To isolation circuit 1, the power supply state of radio frequency state machine 12 is obtained；When completion microcontroller 11 and radio frequency state machine 12 are interactive
Operation, the output disabling signal of radio frequency state machine 12 (exporting low level) is to isolation circuit 1, and radio frequency state machine 12 is at this time not
It is concerned about the power supply state of microcontroller 11 again, you can the power supply state to control microcontroller 11 switches to the first power supply state.
Microcontroller 11 and radio frequency state machine are can be seen that by the description of power supply state handoff procedure in above-described embodiment
12 can obtain the power supply state of other side by isolation circuit, to ensure the reliability of power supply state switching.
In an embodiment of the present invention, isolation circuit 1 and isolation circuit 2 121 are AND gate circuits.
In specific implementation, RF SoC 10 can also include：The power supply circuit two of radio frequency state machine 12 is (in Fig. 1
122) and the power supply circuit of microcontroller 11 one (power supply circuit 1 in Fig. 1) power supply circuit 2.The microcontroller 11
It is coupled to the enable signal input terminal P12 of 12 corresponding power supply circuit 2 122 of the radio frequency state machine, is suitable for controlling the radio frequency
The power supply state of state machine 12；The enable signal for the power supply circuit that the radio frequency state machine 12 is coupled to the microcontroller 11 is defeated
Enter to hold P11, is suitable for controlling the power supply state of the microcontroller 11.
In an embodiment of the present invention, the power supply circuit of the power supply circuit two and the microcontroller of the radio frequency state machine
One includes low-dropout linear voltage-regulating circuit.
In specific implementation, the RF SoC 10 can also include：Fifo circuit 13, the first in first out
The isolation circuit of the power supply circuit of circuit 13 and the fifo circuit 13；The power supply circuit of wherein fifo circuit 13 is
The isolation circuit of power supply circuit 3 132, the fifo circuit 13 is isolation circuit 3 131.
The microcontroller 11 and the radio frequency state machine 12 can be coupled to the advanced elder generation by isolation circuit 3 131
Go out circuit 13.The microcontroller 11 and radio frequency state machine 12 are coupled to the enable signal input terminal P13 of power supply circuit 3 132,
Suitable for generating corresponding control signal to control the power supply state of the fifo circuit 13.
In an embodiment of the present invention, the microcontroller 11 and the radio frequency state machine 12 pass through isolation circuit one respectively
111, isolation circuit 2 121 is coupled to isolation circuit 3 131, to be coupled to fifo circuit 13.Microcontroller 11 or radio frequency
State machine 12 respectively can be similar to aforementioned micro controller 11, isolation circuit one with 13 specific connection relation of fifo circuit
111, the connection relation of radio frequency state machine 12 and isolation circuit 2 121.It is understood that isolation circuit 3 131 can wrap
Include one group of isolation circuit for corresponding respectively to microcontroller 11 and radio frequency state machine 12.
In specific implementation, the RF SoC 10 can also include：Encoder and modulator 14, the encoder
With 14 corresponding power supply circuit of modulator and isolation circuit；Wherein the power supply circuit of demodulator and decoder 14 is power supply circuit
4 142, the isolation circuit of demodulator and decoder 14 is isolation circuit 4 141.
The radio frequency state machine 12 is coupled to the encoder and modulator 14 by isolation circuit 4 141；The radio frequency
State machine 12 is coupled to the enable signal input terminal P14 of power supply circuit 4 142, suitable for generating corresponding control signal to control
State the power supply state of encoder and modulator 14.
In an embodiment of the present invention, radio frequency state machine 12 is coupled to by isolation circuit 2 121 and isolation circuit 4 141
The encoder and modulator 14, can be similar to aforementioned micro controller 11, isolation circuit 1, radio frequency state machine 12 and
The connection relation of isolation circuit 2 121.
In specific implementation, the RF SoC 10 can also include：Demodulator and decoder 15, the demodulator
With 15 corresponding isolation circuit of 15 corresponding power supply circuit of decoder and the demodulator and decoder；Wherein demodulator is conciliate
The power supply circuit of code device 15 is power supply circuit 5 152, and the isolation circuit of institute's demodulator and decoder 15 is isolation circuit 5 151.
The radio frequency state machine 12 is coupled to the demodulator and decoder 15 by isolation circuit 5 151；The radio frequency
State machine 12 is coupled to the enable signal input terminal P15 of power supply circuit 5 152, suitable for generating corresponding control signal to control
State the power supply state of demodulator and decoder 15.
In an embodiment of the present invention, radio frequency state machine 12 is coupled to institute by isolation circuit 121 and isolation circuit 5 151
State demodulator and decoder 15, can be similar to aforementioned micro controller 11, isolation circuit 1, radio frequency state machine 12 and every
Connection relation from circuit 2 121.
In specific implementation, the RF SoC 10 can also include：Rf analog front-end circuit 16, the radio frequency
The power supply circuit and isolation circuit of analog front circuit 16.Wherein：The power supply circuit of rf analog front-end circuit 16 is power supply
The isolation circuit of circuit 6 162,16 circuit of the rf analog front-end is isolation circuit 6 161.
The radio frequency state machine 12 is coupled to the rf analog front-end circuit 16 by isolation circuit 6 161；It is described to penetrate
Frequency state machine 12 is coupled to the enable signal input terminal P16 of power supply circuit 6 162, is suitable for generating corresponding control signal and controls institute
State the power supply state of rf analog front-end circuit.
Fig. 3 is a kind of structural schematic diagram of RF SoC in the embodiment of the present invention.
Fifo circuit 13, encoder and modulator 14, demodulator and decoder 15, radio frequency analog circuit 16 can be with
It is coupled by corresponding isolation circuit and microcontroller 11, radio frequency state machine 12.The power supply circuit of rf analog front-end can wrap
One group of low-dropout linear voltage-regulating circuit LDOA1~N is included, in the VDDA of analog power domain；Fifo circuit 13, encoder and
Modulator 14 and the power supply circuit of demodulator and decoder 15 can share, including low-dropout linear voltage-regulating circuit LDOD3, place
In the VDDD of digital power domain；The power supply circuit of radio frequency state machine 12 may include low-dropout linear voltage-regulating circuit LDOD2, micro-control
The power supply circuit of device 11 processed may include that low-dropout linear voltage-regulating circuit LDOD1, LDOD1 and LDOD2 are in digital power domain
In VDDD.Analog power domain and digital power domain are isolated, so as to avoid mutual interference.Each low pressure difference linearity is steady
Volt circuit can access corresponding control signal, such as control signal EN_LDOA1~EN_LDOAN, control signal EN_
LDOD1~EN_LDOD3, to determine power supply state.Control signal can be generated by microcontroller 11, can also be by radio frequency state
Machine 12 generates.Low-dropout linear voltage-regulating circuit LDOD1 in the power supply circuit one of microcontroller 11 can also access external event
Signal EXT_WU is controlled, its power supply state is controlled by external event.
Radio frequency state machine 12 and microcontroller 11 are integrated in the same chip, due to the power consumption of chip interior signal transmission
Far below the power consumption of signal transmission between chip, so as to reduce the power consumption of radio frequency system.Due to starting in radio frequency state machine
Afterwards, the power supply state for controlling the microcontroller is the first power supply state, and the microcontroller is in first power supply state
Power consumption be less than in the second power supply state power consumption, to reduce the power consumption of radio frequency system.
The embodiment of the present invention also provides a kind of control method of RF SoC, and the RF SoC includes：It penetrates
Frequency state machine and microcontroller, the radio frequency state machine are mutually coupled with the microcontroller, and the control method includes：It is described
Upon actuation, the power supply state for controlling the microcontroller is the first power supply state to radio frequency state machine；
When needing to wake up the microcontroller, the power supply state of the microcontroller is cut from first power supply state
It is changed to the second power supply state, the power consumption that the microcontroller is in first power supply state is less than in the second power supply state
Power consumption.
In specific implementation, the radio frequency state machine, which starts, includes：By the micro-control before the communication data transfer
Device processed starts the radio frequency state machine.
In specific implementation, the radio frequency state machine can also include：After communication data transfer, the radio frequency state machine control
The power supply state for making the microcontroller is switched to the second power supply state from first power supply state.
In specific implementation, when being triggered by external event, the power supply state of the microcontroller can be from described first
Power supply state is switched to the second power supply state.
In specific implementation, after the RF SoC starts, the microcontroller may be at second power supply
State.
In specific implementation, the RF SoC can also include：Fifo circuit, encoder and modulator,
The control method of demodulator and decoder and rf analog front-end, the RF SoC can also include：The micro-control
Device or radio frequency state machine processed replaces the first in first out for controlling the RF SoC according to the flow of the communication data transfer
The power supply state of circuit, encoder and modulator, demodulator and decoder and rf analog front-end.
The embodiment of the present invention also provides another RF SoC, as shown in Figure 4.Aforementioned RF SoC can be
It is realized on radio frequency chip.RF SoC positioned at radio frequency chip include rf analog front-end circuit 71, radio frequency state machine and
Microcontroller.Digital circuit 73 includes the radio frequency state machine and microcontroller.
The periphery that the radio frequency chip corresponds to 71 position of rf analog front-end circuit is provided with substrate contact hole, p-well
Contact hole, N traps contact hole 72；The microcontroller is configured to be in the first power supply state or the second power supply state, described
The power consumption that microcontroller is in first power supply state is less than the power consumption in the second power supply state；The radio frequency state machine is suitable
It is the first power supply state in upon actuation, controlling the power supply state of the microcontroller.
In the embodiment of the present invention, the periphery by corresponding to the rf analog front-end circuit position in the radio frequency chip is set
It is equipped with substrate contact hole, p-well contact hole, N trap contact holes, signal cross-talk can be prevented, meet the needs of signal integrity and foot
Enough low bottoms of making an uproar.
In embodiments of the present invention, radio frequency state machine and microcontroller are integrated in the same chip, due to chip interior
The power consumption of signal transmission is far below the power consumption of signal transmission between chip, so as to reduce the power consumption of radio frequency system.Due to
After radio frequency state machine starts, the power supply state for controlling the microcontroller is the first power supply state, and the microcontroller is in institute
The power consumption for stating the first power supply state is less than the power consumption in the second power supply state, to reduce the power consumption of radio frequency system.
The embodiment of the present invention also provides a kind of method of RF SoC communication data transfer, the RF SoC
Including：Radio frequency state machine and microcontroller, the radio frequency state machine are mutually coupled with the microcontroller.It is on the radio frequency tablet
The method of system communication data transfer is as shown in Figure 5.
The power supply state of S11, microcontroller are the second power supply state.
In specific implementation, it is starting state that the state of microcontroller, which is the second power supply state,.The microcontroller is the
Two power supply states can be that starting up is in the second power supply state or enters the second power supply by the control of radio frequency state machine
State can also be and enter the second power supply state by external event triggering.
S13, the microcontroller control the radio frequency state machine and start.
In specific implementation, it can also includes step to be controlled before the radio frequency state machine starts in the microcontroller
S12：The microcontroller controls the fifo circuit and starts, the transmission data between the fifo circuit, such as
The microcontroller transmits the communication data that need to be sent to the fifo circuit.The fifo circuit preserves institute
State the communication data that need to be sent.
S14, upon actuation, the power supply state for controlling the microcontroller is the first power supply state to radio frequency state machine.It is described
Power consumption when power consumption when microcontroller is in first power supply state is less than in second power supply state.
In specific implementation, first power supply state can be powered off or low power consumpting state, off-position it is low in energy consumption
In low power consumpting state, but the first power supply state can solve the problems, such as power supply circuit start-up study for low power consumpting state, improve system
Operational efficiency.In an embodiment of the present invention, the microcontroller is uA grades in the low-power consumption mode electric current of the first power supply state
Not, it is only nA ranks in the electric current of off-position.
In specific implementation, after the radio frequency state machine controls the microcontroller power-off or enters low power consumpting state, also
May include：
S15, the radio frequency state machine control the encoder and modulator firing, to the communication data carry out coding and
Modulation；
S16, the radio frequency state machine control the rf analog front-end and start, and send the coding and modulated described
Communication data, to complete the transmission process of communication data.
Communication data transfer process in the embodiment of the present invention is the transmission process of communication data, due in radio frequency state machine
After startup, the power supply state for controlling the microcontroller is the first power supply state, and the microcontroller is in described first and powers
The power consumption of state is less than the power consumption in the second power supply state, to reduce the power consumption of communication data transfer process.
Fig. 6 is the flow chart of another RF SoC communication data transmission method in the embodiment of the present invention.
The power supply state of step S11, microcontroller are the second power supply state；S13, the microcontroller control the radio frequency
State machine starts；S14, upon actuation, the power supply state for controlling the microcontroller is that the first power supply state exists to radio frequency state machine
This is repeated no more.
In specific implementation, after step S14, can also include：
S21, the radio frequency state machine control the rf analog front-end and start, and receive the communication data.
S22, the radio frequency state machine control the demodulator and decoder and start, and the communication data carries out demodulation reconciliation
Code.
S23, the power supply state that the radio frequency state machine controls the microcontroller switch to second power supply state, institute
It states fifo circuit and sends the communication data to the microcontroller.Communication data at this time is the communication number received
According to.
S24, the power supply state that the radio frequency state machine controls the microcontroller switch to second power supply state, institute
It states fifo circuit and sends the communication data to the microcontroller.
Communication data transfer process in the embodiment of the present invention is the receive process of communication data, due in radio frequency state machine
After startup, the power supply state for controlling the microcontroller is the first power supply state, and the microcontroller is in described first and powers
The power consumption of state is less than the power consumption in the second power supply state, to reduce the power consumption of communication data transfer process.
Fig. 7 is the flow chart of another communication data transmission method in the embodiment of the present invention.
After the completion of step S14 is executed, following steps can also be performed：
S31, the radio frequency state machine control timer start.
The power supply state of S32, the timer expiry, the radio frequency state machine are the first power supply state, the radio frequency shape
Power consumption when state machine is in the first power supply state is less than power consumption when starting.
In specific implementation, microcontroller can be triggered by external event at this time, into the second power supply state.
Communication data transfer process in the embodiment of the present invention is the transmission process of another communication data, between sending time
It is determined every by timer.Since the power supply state for after the startup of radio frequency state machine, controlling the microcontroller is the first power supply shape
State, the power consumption that the microcontroller is in first power supply state is less than the power consumption in the second power supply state, to reduce
The power consumption of communication data transfer process.
To reduce the power consumption of RF SoC in the embodiment of the present invention, can also be wiped only with page in radio upgrade
With word programing function.
The self-programming of microcontroller is to operate IAP (In-Application by Flash program memory self-programming
Programming).When program operates in the areas SRAM, Flash is in idle condition.Therefore, it can be operated to journey by IAP
Sequence memory upgrades into line program.
IAP operations include mainly program page erasing and word programming, are not limited to both applications.General procedure upgrades, and adopts
It is realized with bootloader, and bootloader realizes that program upgrading, power consumption are high.In order to avoid guiding journey from bootloader
Sequence, the upgrade procedure by the way of low cost, low-power consumption, only with page erasing and word programing function.The program of upgrading is logical
The transmitting-receiving of communication data is crossed, is stored in SRAM, then Flash is programmed to by SRAM.In view of the reliability of system operation, page erasing and
Word programming needs unlock, verification, avoids accidentally erasing and accidentally programming operation.
Fig. 8 is a kind of page of erasing flow chart in the embodiment of the present invention.
S81, unlock operation.
S82, the page address of setting erasing unit.
S83 selects page erasing mode, into operation mode.
S84, judging IAP, whether state is busy.
Since the page erasing time is long, can periodically check IAP states to microcontroller, without have been at power consumption compared with
High working condition.
It is understood that when microcontroller is in the second power supply state, can also be needed to configure according to task as difference
Working condition, the power consumption of different working conditions also has nothing in common with each other.When IAP is in busy state, microcontroller can be located
In the lower working condition of power consumption, so as to reduce the power consumption of microcontroller.
RF SoC is also frequently necessary to carry out system upgrade in addition to the process for normally completing data transmit-receive.If utilizing
Bootloader upgrades RF SoC, then microcontroller needs to have been at the higher work of power consumption in escalation process
State so that system power dissipation is higher.And in the way of the upgrading in the embodiment of the present invention, it can further decrease on radio frequency tablet and be
The power consumption of system.
S85 judges whether erasure completion, and confirms and wipe successfully.
If erasing does not complete, enter S86 error handling processings.
Fig. 9 is a kind of word programming flow diagram in the embodiment of the present invention.
S91, unlock operation.
The address of programming unit is arranged in S92.
Programming data is arranged in S93.
S94 selects word cell programming mode, into operation mode.
S95, judging IAP, whether state is busy.
As previously described, because the page erasing time is long, to which microcontroller can periodically check IAP states, without always
It is in the higher working condition of power consumption.
S96 judges whether that programming is completed, and confirms and program successfully.If programming does not complete, enter S98 error handling processings.
S97 judges whether that all units program completion, and confirms and program successfully.If all word cells do not program knot
Beam then enters S90 and unlocks IAP；Judge whether to skip with S99；Enter S92 if having skipped, enters S93 if not skipping.
In embodiments of the present invention, due to the radio frequency state machine of RF SoC, microcontroller, fifo circuit,
Rf analog front-end circuit etc. has corresponding power supply circuit so that and each section power supply of RF SoC is isolated,
Different circuits is operated in different power domains, so as to easily control the power supply state of different circuits, and can meet
The demand of low-power consumption and signal integrity.
In addition, by being provided with substrate contact hole, p-well contact hole, N on the periphery of the rf analog front-end circuit position
Trap contact hole can prevent signal cross-talk, meet the needs of signal integrity.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (19)
1. a kind of RF SoC, which is characterized in that including：Radio frequency state machine and microcontroller, the radio frequency state machine
It is mutually coupled with the microcontroller；
The radio frequency state machine and the microcontroller can be configured at the first power supply state or the second power supply state, place
It is less than the power consumption in the second power supply state in the power consumption of first power supply state；
The power supply state that the radio frequency state machine is suitable for controlling the microcontroller upon actuation is the first power supply state；
The RF SoC further includes：The power supply circuit of the power supply circuit two and the microcontroller of the radio frequency state machine
One；
The microcontroller is coupled to the enable signal input terminal of the power supply circuit two of the radio frequency state machine, is suitable for described in control
The power supply state of radio frequency state machine；
The radio frequency state machine is coupled to the enable signal input terminal of the power supply circuit one of the microcontroller, is suitable for generating correspondence
Control signal to control the power supply state of the microcontroller.
2. RF SoC according to claim 1, which is characterized in that further include：Radio frequency state machine isolation circuit two
With microcontroller isolation circuit one；
First output end of the radio frequency state machine is connected to the first input end of the radio frequency state machine isolation circuit two, described
The second output terminal of radio frequency state machine is connected to the second input terminal of the microcontroller isolation circuit one, the radio frequency state machine
Input terminal be connected to the output end of the radio frequency state machine isolation circuit two；
First output end of the microcontroller is connected to the first input end of the microcontroller isolation circuit one, the micro-control
Second input terminal of device processed is connected to the second input terminal of the radio frequency state machine isolation circuit two, the input of the microcontroller
End is connected to the output end of the microcontroller isolation circuit one.
3. RF SoC according to claim 1, which is characterized in that two He of power supply circuit of the radio frequency state machine
The power supply circuit one of the microcontroller includes low-dropout linear voltage-regulating circuit.
4. RF SoC according to claim 1, which is characterized in that further include：It is fifo circuit, described advanced
First go out the power supply circuit three of circuit and the isolation circuit three of the fifo circuit；
The microcontroller and the radio frequency state machine are coupled to the elder generation by the isolation circuit three of the fifo circuit
Into first going out circuit；
The microcontroller and radio frequency state machine are coupled to the enable signal input of the power supply circuit three of the fifo circuit
End, suitable for generating corresponding control signal to control the power supply state of the fifo circuit.
5. RF SoC according to claim 1, which is characterized in that further include：Encoder and modulator, the volume
Code device and the corresponding isolation circuit of the corresponding power supply circuit four of modulator and the encoder and modulator four；
The radio frequency state machine is coupled to the encoder and tune by the encoder and the corresponding isolation circuit of modulator four
Device processed；
The radio frequency state machine is coupled to the enable signal input terminal of the encoder and the corresponding power supply circuit of modulator four, fits
In the corresponding control signal of generation to control the power supply state of the encoder and modulator.
6. RF SoC according to claim 1, which is characterized in that further include：Demodulator and decoder, the solution
Adjust device and the corresponding power supply circuit five of decoder and the corresponding isolation circuit of the demodulator and decoder five；
The radio frequency state machine is coupled to the demodulator by the corresponding isolation circuit of the demodulator and decoder five and conciliates
Code device；
The radio frequency state machine is coupled to the enable signal input terminal of the corresponding power supply circuit of the demodulator and decoder five, fits
In the corresponding control signal of generation to control the power supply state of the demodulator and decoder.
7. RF SoC according to claim 1, which is characterized in that further include：It is rf analog front-end circuit, described
The isolation circuit six of the power supply circuit six of rf analog front-end circuit and the rf analog front-end circuit；
The radio frequency state machine is coupled to the rf analog front-end by the isolation circuit six of the rf analog front-end circuit；
The radio frequency state machine is coupled to the enable signal input terminal of the power supply circuit six of the rf analog front-end, is suitable for generating
Corresponding control signal is to control the power supply state of the rf analog front-end circuit.
8. RF SoC according to claim 7, which is characterized in that the week of the rf analog front-end circuit position
While being provided with substrate contact hole, p-well contact hole, N trap contact holes.
9. a kind of control method of RF SoC, the RF SoC include：Radio frequency state machine and microcontroller,
The radio frequency state machine is mutually coupled with the microcontroller, it is characterised in that：
Upon actuation, the power supply state for controlling the microcontroller is the first power supply state to the radio frequency state machine；
When needing to wake up the microcontroller, the power supply state of the microcontroller is switched to from first power supply state
Second power supply state, the power consumption that the microcontroller is in first power supply state are less than the work(in the second power supply state
Consumption；
The RF SoC further includes：The power supply circuit of the power supply circuit two and the microcontroller of the radio frequency state machine
One；
The microcontroller is coupled to the enable signal input terminal of the power supply circuit two of the radio frequency state machine, is suitable for described in control
The power supply state of radio frequency state machine；
The radio frequency state machine is coupled to the enable signal input terminal of the power supply circuit one of the microcontroller, is suitable for generating correspondence
Control signal to control the power supply state of the microcontroller.
10. the control method of RF SoC according to claim 9, which is characterized in that the radio frequency state machine opens
It is dynamic to include：The radio frequency state machine is started by the microcontroller before communication data transfer.
11. the control method of RF SoC according to claim 9, which is characterized in that further include：
After communication data transfer, the radio frequency state machine controls the power supply state of the microcontroller from first power supply state
It is switched to the second power supply state.
12. the control method of RF SoC according to claim 9, which is characterized in that further include：By external thing
When part triggers, the power supply state of the microcontroller is switched to the second power supply state from first power supply state.
13. the control method of RF SoC according to claim 9, which is characterized in that further include：The radio frequency tablet
After upper system starts, the microcontroller is in second power supply state.
14. the control method of RF SoC according to claim 9, which is characterized in that the RF SoC
Further include：Fifo circuit, encoder, modulator, demodulator, decoder and rf analog front-end, on the radio frequency tablet
The control method of system further includes：The microcontroller or radio frequency state machine are alternately controlled according to the flow of communication data transfer
Fifo circuit, encoder and the modulator of the RF SoC, demodulator and decoder and rf analog front-end
Power supply state.
15. a kind of communication data transmission method of RF SoC, the RF SoC include：Radio frequency state machine and
Microcontroller, the radio frequency state machine are mutually coupled with the microcontroller, which is characterized in that including：
The power supply state of the microcontroller is the second power supply state；
The microcontroller controls the radio frequency state machine and starts；
Upon actuation, the power supply state for controlling the microcontroller is the first power supply state, the micro-control to the radio frequency state machine
Power consumption when power consumption when device processed is in first power supply state is less than in second power supply state；
The RF SoC further includes：The power supply circuit of the power supply circuit two and the microcontroller of the radio frequency state machine
One；
The microcontroller is coupled to the enable signal input terminal of the power supply circuit two of the radio frequency state machine, is suitable for described in control
The power supply state of radio frequency state machine；
The radio frequency state machine is coupled to the enable signal input terminal of the power supply circuit one of the microcontroller, is suitable for generating correspondence
Control signal to control the power supply state of the microcontroller.
16. the communication data transmission method of RF SoC according to claim 15, which is characterized in that the radio frequency
System on chip further includes fifo circuit, further includes before the microcontroller controls the radio frequency state machine startup：
The microcontroller controls the fifo circuit and starts, and the communication data is sent to the fifo circuit.
17. the communication data transmission method of RF SoC according to claim 16, which is characterized in that the radio frequency
System on chip further includes encoder and modulator, and the radio frequency state machine controls the microcontroller and powers off or enter described first
After power supply state, further include：
The radio frequency state machine controls the encoder and modulator firing, and the communication data is encoded and modulated；
The radio frequency state machine controls the rf analog front-end and starts, and sends the coding and the modulated communication number
According to.
18. the communication data transmission method of RF SoC according to claim 17, which is characterized in that the radio frequency
System on chip further includes demodulator and decoder, and the radio frequency state machine controls the microcontroller and powers off or enter described first
After power supply state, further include：
The radio frequency state machine controls the rf analog front-end and starts, and receives the communication data；
The radio frequency state machine controls the demodulator and decoder and starts, and the communication data is demodulated and decoded；
The radio frequency state machine controls the fifo circuit and starts, and the communication number is sent to the fifo circuit
According to；
The power supply state that the radio frequency state machine controls the microcontroller switches to second power supply state, the advanced elder generation
Go out circuit and sends the communication data to the microcontroller.
19. the communication data transmission method of RF SoC according to claim 15, which is characterized in that the radio frequency
State machine controls the power supply state of the microcontroller after the first power supply state, to further include：The radio frequency state machine control is fixed
When device start；
The power supply state of the timer expiry, the radio frequency state machine is the first power supply state, and the radio frequency state machine is in
Power consumption when the first power supply state is less than power consumption when starting.
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