CN109144920A - A kind of chip controls word generation circuit based on piece external voltage - Google Patents
A kind of chip controls word generation circuit based on piece external voltage Download PDFInfo
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- CN109144920A CN109144920A CN201811377573.0A CN201811377573A CN109144920A CN 109144920 A CN109144920 A CN 109144920A CN 201811377573 A CN201811377573 A CN 201811377573A CN 109144920 A CN109144920 A CN 109144920A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 238000004088 simulation Methods 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
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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
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
The present invention discloses a kind of chip controls word generation circuit based on piece external voltage, including chip internal circuits and chip exterior circuit；Chip internal circuits include analog to digital conversion circuit and Logic control module；Chip exterior circuit includes that voltage generation circuit is simulated outside piece；One end of analog to digital conversion circuit connects Logic control module, and voltage generation circuit is simulated outside the input/output port connection sheet that the other end passes through chip.The present invention exports different voltage signals to analog to digital conversion circuit by changing the circuit parameter of simulation voltage generation circuit outside piece, analog to digital conversion circuit generates different control words according to different voltage signals, the control word can change Logic control module register address or register initial value, it solves the problem of while these identical chips can not be identified using host when multiple identical chips；The control word can also control chip by Logic control module and generate being turned on or off for different function or control chip, realize the Function Extension of chip.
Description
Technical field
The present invention relates to computer hardware technology field more particularly to a kind of chip controls word generations based on piece external voltage
Circuit.
Background technique
It is a variety of in particular with 3G, 4G even development of 5G technology with the continuous development of computer and the communication technology
Mobile product is to radio-frequency front-end equipment (RFFE) (such as power amplifier, active antenna tuner, low-noise amplifier and antenna
Switch etc.) demand be continuously increased, and for device manufacturer, chosen if the so many chip of control will be brought to them
War, traditional GPIO control method cannot meet the needs, and more and more radio frequency front end chips have used MIPI
(Mobile Industry Processor Interface, mobile industry processor interface) interface, as long as main equipment two letters
Number line can control all devices, but on condition that each radio-frequency front-end can pass through USID (Unique Slave from equipment
ID, from device identifier), PID (PRODUCT_ID, product identifiers) or MfrlID (MANUFACTURER_ID, manufacturer
Identifier) etc. identity signal it is identified.When using multiple identical chips simultaneously, host can not be to these identical cores
Piece is identified.
Summary of the invention
It is an object of the invention to by a kind of chip controls word generation circuit based on piece external voltage, to solve above carry on the back
The problem of scape technology segment is mentioned.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of chip controls word generation circuit based on piece external voltage, which includes chip internal circuits and chip exterior
Circuit；The chip internal circuits include analog to digital conversion circuit and Logic control module；The chip exterior circuit includes outside piece
Analog voltage generation circuit；One end of analog-digital conversion circuit as described connects Logic control module, the input that the other end passes through chip
Voltage generation circuit is simulated outside output port connection sheet；Simulation voltage generation circuit is used for by adjusting circuit parameter outside described
Different voltage signals is generated, is exported to analog to digital conversion circuit；Analog-digital conversion circuit as described is used to turn the voltage signal received
It is changed to digital signal, obtains different control words；The Logic control module is for executing following any operation: one, passing through institute
The initial value that control word changes its register address or register is stated, different identifiers is generated；Two, made by the control word
Chip generates different function.
Particularly, the Logic control module uses but is not limited to GPIO interface, MIPI interface, I2C's is any.
Particularly, the analog voltage source that voltage generation circuit uses voltage variable is simulated outside for described；The voltage variable
Analog voltage source connection chip input/output port.
Particularly, it includes resistance R1 and resistance R2 that described is simulated voltage generation circuit outside；A termination of the resistance R1
One end connection of the input/output port, resistance R2 of power end VDD, the other end and chip, the input/output port connection of chip
Analog to digital conversion circuit, the other end ground terminal GND of resistance R2.
Particularly, the chip internal circuits include that voltage generation circuit is simulated in piece, and described interior analog voltage generates
Circuit includes resistance R3；Simulation voltage generation circuit includes resistance R4 outside described；One end ground terminal GND of the resistance R3,
The other end is connect with the input/output port of analog to digital conversion circuit, chip, and a termination power end VDD of resistance R4, the other end connects
Connect the input/output port of chip.
Particularly, the chip internal circuits include that voltage generation circuit is simulated in piece, and described interior analog voltage generates
Circuit includes resistance R5；Simulation voltage generation circuit includes resistance R6 outside described；A termination power end of the resistance R5
VDD, the other end are connect with the input/output port of analog to digital conversion circuit, chip, one end ground terminal GND of resistance R6, the other end
Connect the input/output port of chip.
Particularly, the chip includes but is not limited to analog chip, radio frequency chip.
Particularly, the radio frequency chip includes but is not limited to low-noise amplifier, power amplifier, RF switch, filtering
Device, duplexer.
Chip controls word generation circuit proposed by the present invention based on piece external voltage is generated by changing analog voltage outside piece
The circuit parameter of circuit exports different voltage signals to the analog to digital conversion circuit of chip interior, and analog to digital conversion circuit is according to difference
Voltage signal generate different control words, which can change the register address or register of Logic control module
Initial value, so that chip be made to generate different identifiers, when solving while using multiple identical chips, host can not be to these
The problem of identical chip is identified；The control word can also control chip by Logic control module and generate different functions
Or being turned on or off for chip is controlled, realize the Function Extension of chip.
Detailed description of the invention
Fig. 1 is the chip controls word generation circuit schematic diagram provided in an embodiment of the present invention based on piece external voltage；
Fig. 2 is the chip controls word generation circuit structure chart based on piece external voltage that the embodiment of the present invention one provides；
Fig. 3 is the chip controls word generation circuit structure chart provided by Embodiment 2 of the present invention based on piece external voltage；
Fig. 4 is the chip controls word generation circuit structure chart based on piece external voltage that the embodiment of the present invention three provides；
Fig. 5 is the chip controls word generation circuit structure chart based on piece external voltage that the embodiment of the present invention four provides.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is makes to the more thorough of the disclosure understanding
Comprehensively.It should be noted that it can be directly to another when an element is considered as " connection " another element
Element may be simultaneously present centering elements.Unless otherwise defined, all technical and scientific terms used herein with
It is identical to belong to the normally understood meaning of those skilled in the art of the invention.Made in the description of the invention herein
Term, which is only for the purpose of describing specific embodiments, is not intended to limit the present invention.
It please refers to shown in Fig. 1, Fig. 1 is the chip controls word generation circuit provided in an embodiment of the present invention based on piece external voltage
Schematic diagram.
Chip controls word generation circuit in the present embodiment based on piece external voltage specifically includes chip internal circuits and chip
External circuit；The chip internal circuits include analog to digital conversion circuit 101 and Logic control module 102；The chip exterior electricity
Road includes that voltage generation circuit 103 is simulated outside piece.One end of analog-digital conversion circuit as described 101 connects Logic control module 102, separately
Voltage generation circuit 103 is simulated outside 105 connection sheet of input/output port that one end passes through chip 104；Described outer analog voltage
Generation circuit 103 is exported for generating different voltage signals by adjusting circuit parameter to analog to digital conversion circuit 101；It is described
Analog to digital conversion circuit 101 is used to the voltage signal received being converted to digital signal, obtains different control words；The logic control
Molding block 102 is used to execute following any operation: one, changing the initial of its register address or register by the control word
Value, generates different identifiers；Two, chip 104 is made to generate different function by the control word.The core in the present embodiment
Piece 105 includes but is not limited to analog chip, radio frequency chip.The radio frequency chip includes but is not limited to low-noise amplifier, power
Amplifier, RF switch, filter, duplexer.The Logic control module 102 uses but is not limited to GPIO (General
Purpose Input Output, universal input/output) interface, MIPI (Mobile Industry Processor
Interface, mobile industry processor interface), I2C's (Inter-Integrated Circuit) etc. is any.It is described to post
Storage address can be USID in MIPI agreement (uniquely from device identifier), PRODUCT_ID (product identifiers) etc., can also
To be I2Slave address (from device address) in the C agreement or ID in other agreements.Institute in the present embodiment
Stating input/output port 105 can be specifically for the port for generating control word setting, and being also possible in radio frequency chip can
The prevention at radio-frequency port of multiplexing.
Below with reference to four specific embodiments, the present invention will be described
Embodiment one: as shown in Fig. 2, analog voltage generates outside the piece of the chip controls word generation circuit based on piece external voltage
Circuit 103 uses the analog voltage source VC of voltage variable；The input of the analog voltage source connection chip 104 of the voltage variable is defeated
Exit port 105.In the present embodiment without simulating voltage generation circuit in piece in chip 104, by directly connecing difference outside piece
Analog voltage so that the analog to digital conversion circuit 101 that passes through in piece generate different control words.
Embodiment two: as shown in figure 3, analog voltage generates outside the piece of the chip controls word generation circuit based on piece external voltage
Circuit 103 includes resistance R1 and resistance R2；A termination power end VDD of the resistance R1, the input of the other end and chip 104 are defeated
One end connection of exit port 105, resistance R2, the input/output port 105 of chip 104 connect analog to digital conversion circuit 101, resistance R2
Other end ground terminal GND.Pass through resistance outside piece without simulating voltage generation circuit in piece in chip 104 in the present embodiment
R1 and resistance R2 partial pressure generates analog voltage at input/output port 105, changes the resistance of one or two resistance outside piece
Value can be obtained different analog voltage signals and then the analog to digital conversion circuit 101 passed through in piece generates different control words.
Embodiment three: as shown in figure 4, chip internal circuits include in the chip controls word generation circuit based on piece external voltage
Voltage generation circuit is simulated in piece, simulation voltage generation circuit includes resistance R3 in described；Voltage generation circuit is simulated outside piece
103 include resistance R4；One end ground terminal GND of the resistance R3, the input of the other end and analog to digital conversion circuit 101, chip 104
Output port 105 connects, and a termination power end VDD of resistance R4, the other end connects the input/output port 105 of chip 104.?
By changing the resistance value of the resistance R4 outside piece in the present embodiment, different analog voltage letters is generated at input/output port 105
Number so different control words is generated by the analog to digital conversion circuit 101 in piece.
Example IV: as shown in figure 5, chip internal circuits include in the chip controls word generation circuit based on piece external voltage
Voltage generation circuit is simulated in piece, simulation voltage generation circuit includes resistance R5 in described；Voltage generation circuit is simulated outside piece
103 include resistance R6；A termination power end VDD of the resistance R5, the other end and analog to digital conversion circuit 101, chip 104 it is defeated
Enter the connection of output port 105, one end ground terminal GND of resistance R6, the other end connects the input/output port 105 of chip 104.?
By changing the resistance value of the resistance R6 outside piece in the present embodiment, different analog voltage letters is generated at input/output port 105
Number so different control words is generated by the analog to digital conversion circuit 101 in piece.
Technical solution of the present invention by given outside chip 104 different voltage make chip 104 obtain different function or
Person generates different identifiers, solves the problems, such as that main equipment identical may generate address conflict from equipment using multiple.Tool
Body, the present invention exports different voltage signals to chip by changing the circuit parameter of simulation voltage generation circuit 103 outside piece
Analog to digital conversion circuit 101 inside 104, analog to digital conversion circuit 101 generate different control words according to different voltage signals, should
Control word can change the register address of Logic control module 102 or the initial value of register, so that chip 104 be made to generate not
Same identifier, when solving while using multiple identical chips, what host can not identify these identical chips is asked
Topic；The control word can also control chip 104 by Logic control module 102 and generate different function or control chip 104
Be turned on or off, realize chip 104 Function Extension.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (8)
1. a kind of chip controls word generation circuit based on piece external voltage, which is characterized in that including chip internal circuits and chip
External circuit；The chip internal circuits include analog to digital conversion circuit and Logic control module；The chip exterior circuit includes
Voltage generation circuit is simulated outside piece；One end of analog-digital conversion circuit as described connects Logic control module, and the other end passes through chip
Voltage generation circuit is simulated outside input/output port connection sheet；Simulation voltage generation circuit is used for by adjusting circuit outside described
Parameter generates different voltage signals, exports to analog to digital conversion circuit；Analog-digital conversion circuit as described is used to believe the voltage received
Number digital signal is converted to, obtains different control words；The Logic control module is for executing following any operation: one, leading to
The initial value that the control word changes its register address or register is crossed, different identifiers is generated；Two, pass through the control
Word makes chip generate different function.
2. the chip controls word generation circuit according to claim 1 based on piece external voltage, which is characterized in that the logic
Control module uses but is not limited to GPIO interface, MIPI interface, I2C's is any.
3. the chip controls word generation circuit according to claim 1 based on piece external voltage, which is characterized in that described outer
Analog voltage generation circuit uses the analog voltage source of voltage variable；The analog voltage source of the voltage variable connects the defeated of chip
Enter output port.
4. the chip controls word generation circuit according to claim 1 based on piece external voltage, which is characterized in that described outer
Analog voltage generation circuit includes resistance R1 and resistance R2；A termination power end VDD of the resistance R1, the other end and chip
One end connection of input/output port, resistance R2, the input/output port of chip connect analog to digital conversion circuit, and resistance R2's is another
Terminate ground terminal GND.
5. the chip controls word generation circuit according to claim 1 based on piece external voltage, which is characterized in that the chip
Internal circuit includes that voltage generation circuit is simulated in piece, and simulation voltage generation circuit includes resistance R3 in described；Described outer
Analog voltage generation circuit includes resistance R4；One end ground terminal GND of the resistance R3, the other end and analog to digital conversion circuit, core
The input/output port of piece connects, and a termination power end VDD of resistance R4, the other end connects the input/output port of chip.
6. the chip controls word generation circuit according to claim 1 based on piece external voltage, which is characterized in that the chip
Internal circuit includes that voltage generation circuit is simulated in piece, and simulation voltage generation circuit includes resistance R5 in described；Described outer
Analog voltage generation circuit includes resistance R6；A termination power end VDD of the resistance R5, the other end and analog to digital conversion circuit,
The input/output port of chip connects, one end ground terminal GND of resistance R6, and the other end connects the input/output port of chip.
7. the chip controls word generation circuit according to one of claims 1 to 6, based on piece external voltage, which is characterized in that
The chip includes but is not limited to analog chip, radio frequency chip.
8. the chip controls word generation circuit according to claim 7 based on piece external voltage, which is characterized in that the radio frequency
Chip includes but is not limited to low-noise amplifier, power amplifier, RF switch, filter, duplexer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811377573.0A CN109144920A (en) | 2018-11-19 | 2018-11-19 | A kind of chip controls word generation circuit based on piece external voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811377573.0A CN109144920A (en) | 2018-11-19 | 2018-11-19 | A kind of chip controls word generation circuit based on piece external voltage |
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| CN109144920A true CN109144920A (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811377573.0A Pending CN109144920A (en) | 2018-11-19 | 2018-11-19 | A kind of chip controls word generation circuit based on piece external voltage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111614798A (en) * | 2020-06-10 | 2020-09-01 | 广东思诺伟智能技术有限公司 | Single-line input automatic address allocation circuit |
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