CN111294036A - Pad multiplexing device and electronic equipment - Google Patents
Pad multiplexing device and electronic equipment Download PDFInfo
- Publication number
- CN111294036A CN111294036A CN201910645121.4A CN201910645121A CN111294036A CN 111294036 A CN111294036 A CN 111294036A CN 201910645121 A CN201910645121 A CN 201910645121A CN 111294036 A CN111294036 A CN 111294036A
- Authority
- CN
- China
- Prior art keywords
- module
- pad
- control signal
- control
- switch
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/693—Switching arrangements with several input- or output-terminals, e.g. multiplexers, distributors
Abstract
The utility model relates to a pad multiplexing device and electronic equipment, the device includes analog signal output module, switch module, pad module and control module, analog signal output module is used for outputting analog signal; the switch module is electrically connected with the analog signal output module and the pad module; a pad module including at least one digital pad; the control module is electrically connected with the pad module and the switch module and used for generating control signals, wherein the control signals comprise a first control signal and a second control signal, the first control signal is used for controlling the switch module to be conducted so as to transmit the analog signals to the pad module and controlling the pad module to work in an analog mode; the second control signal is used for controlling the switch module to be disconnected so as to cut off the electrical connection relation between the analog signal output module and the pad module, and controlling the pad module to work in a digital mode. The multiplexing of the pad module can be realized, so that the utilization rate of the pad module is improved, and the working efficiency of the device is improved.
Description
Technical Field
The present disclosure relates to the field of semiconductor manufacturing technologies, and in particular, to a pad multiplexing apparatus and an electronic device.
Background
With the continuous development of integrated Circuit technology and semiconductor manufacturing technology, the size of chips and functional modules is smaller and smaller, and more chips and functional modules can be integrated on a Printed Circuit Board (PCB), and these chips and functional modules exchange signals with the outside through PADs (PADs) on the PCB.
Disclosure of Invention
In view of the above, the present disclosure provides a pad multiplexing apparatus including an analog signal output module, a switch module, a pad module, and a control module, wherein,
the analog signal output module is used for outputting an analog signal;
the switch module is electrically connected to the analog signal output module and the pad module;
the pad module comprises at least one digital pad;
the control module is electrically connected with the pad module and the switch module and used for generating control signals, the control signals comprise a first control signal and a second control signal, wherein,
the first control signal is used for controlling the switch module to be conducted so as to transmit the analog signal to the pad module, and is used for controlling the pad module to work in an analog mode;
the second control signal is used for controlling the switch module to be disconnected so as to cut off the electrical connection relation between the analog signal output module and the pad module, and controlling the pad module to work in a digital mode.
In a possible implementation manner, the apparatus further includes a power supply module, wherein the power supply module is used for supplying power to the pad module, the switch module, the analog signal output module and the control module;
the power supply module comprises a first power supply, a second power supply and a third power supply,
the first power supply is used for supplying power to the analog signal output module,
the second power supply is used for supplying power to the pad module,
the third power supply is used for supplying power to the control module,
the first power supply and the second power supply are also used for supplying power to the switch module at the same time.
In one possible embodiment, the switch module comprises a first buffer, a second buffer, an inverter and a switch which are electrically connected in sequence,
the input end of the first buffer is used for inputting the control signal,
the first buffer and the second buffer are used for sequentially buffering the control signal,
the inverter is used for carrying out inversion processing on the control signal after the buffering processing to obtain the control signal after the inversion processing,
the control end of the switch is used for inputting the control signal after the phase inversion processing, the input end of the switch is electrically connected to the analog signal output module, and the output end of the switch is electrically connected to the pad module.
In one possible embodiment, the power supply module of the device comprises a first power supply and a second power supply for simultaneously powering the switch module,
the first power supply is used for supplying power to the first buffer, and the second power supply is used for supplying power to the second buffer, the phase inverter and the switch.
In one possible embodiment, the switch includes a PMOS transistor, or a pair transistor of a PMOS transistor and an NMOS transistor.
In a possible implementation manner, the control module includes a control submodule and a register, and the control submodule is configured to generate the first control signal or the second control signal according to control information input from the outside, and configure the first control signal or the second control signal into the register.
In one possible embodiment, the power module of the apparatus includes a third power source for powering the control module, the third power source being from a normally charged power domain.
In one possible embodiment, the control module further comprises an or mode indicating circuit, a first data selector,
the mode indicating circuit is used for outputting a preset indicating signal under the condition that the device is in a register scanning mode or a memory test mode;
the first input end of the first data selector is used for inputting the data in the register, the second input end of the first data selector is used for inputting the second control signal, the first data selector is used for outputting the second control signal under the condition of receiving a preset indication signal output by the mode indication circuit, and otherwise, the first data selector outputs the data in the register.
In a possible embodiment, the control module further comprises a second data selector, a first input of the second data selector is used for inputting the first data, a second input of the second data selector is used for inputting the second data, and a control terminal of the second data selector is used for inputting the control signal, wherein,
when the control signal is the first control signal, the second data selector outputs the first data, and the first data is used for controlling the pull-up and pull-down functions of the pad module to be in an off state, the current driving strength to be a preset value, the input signal to be a preset value, the schmitt function to be in an off state, and the output enable end to be in an invalid state;
and when the control signal is the second control signal, the data selector outputs the second data, and the second data is used for normally configuring the pad module.
In a possible embodiment, the control module is further configured to turn off the first power supply in case the apparatus is in a register scan mode or a memory test mode.
In a possible implementation manner, the control module is configured to output the second control signal when the first power supply is turned off.
According to another aspect of the present disclosure, an electronic device is provided, which includes the pad multiplexing apparatus.
This disclosure can realize the control to switch module and pad module through the cooperation of each module to make the pad module can work under analog mode or digital mode, and, under the condition of pad module 30 work in analog mode, can transmit the analog signal of analog signal output module output to the pad module through switch module, and utilize the pad module to export analog signal to the external world. The multiplexing of the pad module can be realized, so that the utilization rate of the pad module is improved, and the working efficiency of the device is improved.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 shows a block diagram of a pad multiplexing apparatus according to an embodiment of the present disclosure.
Fig. 2 shows a block diagram of a pad multiplexing apparatus according to an embodiment of the present disclosure.
Fig. 3 shows a block diagram of a pad multiplexing apparatus according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
PADs are generally classified into analog PADs for transmitting analog signals and digital PADs for transmitting digital signals. The disclosure provides a PAD multiplexing device to realize multiplexing of a digital PAD as required, so that the digital PAD can be switched between a digital mode and an analog mode, and the utilization rate of the PAD is improved.
Referring to fig. 1, fig. 1 shows a block diagram of a pad multiplexing apparatus according to an embodiment of the disclosure.
The pad multiplexing apparatus may be disposed in a terminal, which is also referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like, and is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), a wireless terminal in vehicle networking, and the like.
As shown in fig. 1, the apparatus includes an analog signal output module 10, a switch module 20, a pad module 30, and a control module 40, wherein,
the analog signal output module 10 is configured to output an analog signal;
the switch module 20 is electrically connected to the analog signal output module 10 and the pad module 30;
the pad module 30, including at least one digital pad;
the control module 40, electrically connected to the pad module 30 and the switch module 20, is configured to generate control signals, where the control signals include a first control signal and a second control signal,
the first control signal is used for controlling the switch module 20 to be turned on to transmit the analog signal to the pad module 30, and controlling the pad module 30 to operate in an analog mode;
the second control signal is used for controlling the switch module 20 to be switched off to cut off the electrical connection between the analog signal output module 10 and the pad module 30, and controlling the pad module 30 to operate in a digital mode.
This disclosure can realize the control to switch module and pad module through the cooperation of each module to make the pad module can work under analog mode or digital mode, and, under the condition of pad module 30 work in analog mode, can transmit the analog signal of analog signal output module output to the pad module through switch module, and utilize the pad module to export analog signal to the external world. The multiplexing of the pad module can be realized, so that the utilization rate of the pad module is improved, and the working efficiency of the device is improved.
In a possible embodiment, the analog signal output module 10 may include an analog device disposed on the PCB, and the analog signal output module 10 may be configured to output an analog signal generated by the analog device, for example, an RF module for communication, an RF module for Wifi, and the like, in which case the switch module 20 may be disposed outside the analog device.
In other possible embodiments, the analog signal output module 10 may be an analog device itself, in which case the switching module 20 may be provided inside the analog device.
The disclosure is not limited to the specific position relationship of the analog signal output module 10 and the switch module 20, and those skilled in the art can set the position relationship as required.
Referring to fig. 2, fig. 2 shows a block diagram of a pad multiplexing apparatus according to an embodiment of the disclosure.
In a possible embodiment, as shown in fig. 2, the apparatus may further include a power supply module 50, wherein the power supply module 50 is configured to supply power to the pad module 30, the switch module 20, the analog signal output module 10, and the control module 40;
the power module 50 includes a first power supply 501, a second power supply 502 and a third power supply 503,
the first power supply 501 is used to supply power to the analog signal output module 10,
the second power supply 502 is used to supply power to the pad module 30,
the third power source 503 is used to power the control module 40,
the first power supply 501 and the second power supply 502 are also used for simultaneously supplying power to the switch module 20.
Each power supply in the power module of the present disclosure can realize independent power supply, and the pad multiplexing device provided by the present disclosure can have high environmental adaptability by adopting the form of independent power supply.
In one example, when the first power supply 501 is turned off, the analog devices in the terminal are in a sleep or off state, the analog signal output module 10 is turned off, the second power supply 502 and the third power supply 503 can operate normally, and the pad module 30 can operate in a digital mode to transmit digital signals.
In one example, when the first power supply 501, the second power supply 502, and the third power supply 503 are all normally powered, the analog signal output module 10, the switch module 20, the pad module 30, and the control module 40 are all normally operated, and the pad module 30 can be operated in a digital mode or in an analog mode under the control of the control module 40.
In one possible embodiment, the third power supply is from a normally charged power domain (Always on domain). That is, generally, the third power supply that supplies power to the control module 40 is not powered off, and maintains a state of continuous power supply.
In one possible embodiment, the switch module 20 may include a first buffer 201, a second buffer 202, an inverter 203 and a switch 204 electrically connected in sequence,
the input terminal of the first buffer 201 is used for inputting the control signal,
the first buffer 201 and the second buffer 202 are used for sequentially buffering the control signal,
the inverter 203 is used for inverting the buffered control signal to obtain an inverted control signal,
the control end of the switch 204 is used for inputting the control signal after the phase inversion, the input end of the switch is electrically connected to the analog signal output module, and the output end of the switch is electrically connected to the pad module.
The control signal is buffered by the first buffer 201 and the second buffer 202, so that interference between the control signal and other signals can be avoided, and the control signal obtained by inverse processing of the inverter 203 can control the switch 204.
In one possible embodiment, the switch includes a PMOS transistor, or a pair transistor of a PMOS transistor and an NMOS transistor.
For the PMOS transistor, or the pair transistor composed of the PMOS transistor and the NMOS transistor, when the input control signal is low level, the two transistors may be turned on, and when the input control signal is high level, the two transistors are not turned on but are turned off.
In one possible implementation, the first power source 501 may be used to power the first buffer 201, and the second power source 502 may be used to power the second buffer 202, the inverter 203, and the switch 204.
In one example, when the first power supply 501 is turned off, the output of the first buffer 201 is equivalent to a low level (0), and a high level (1) is output after buffering by the second buffer 202 and inversion processing by the inverter 203, in which case the switch 204 is turned off, thereby isolating the pad module 30 from the analog signal output module 10, and the pad module 30 can operate in a digital mode.
It will be understood by those skilled in the art that the above structure of the switch module is merely an example, and those skilled in the art may modify the structure as desired, for example, the inverter 203 may be omitted, and an NMOS transistor may be used as the switch 204, etc.
In one possible embodiment, the switch module 20 may include a plurality of switch sub-modules (not shown) composed of the first buffer 201, the second buffer 202, the inverter 203, and the switch 204, each of which corresponds to each of the digital pads of the pad module 30, so that each of the digital pads may be connected. Of course, in other embodiments, the switch module 20 may include only one switch submodule to control the plurality of digital pads in the pad module 30. The disclosure is not limited thereto.
In an example, when the control module 40 outputs a first control signal (for example, a high level), the first control signal is buffered by the first buffer 201 and the second buffer 202 and then is inverted by the inverter 203 to obtain an inverted first control signal (a low level), the switch 204 is turned on by the inverted first control signal, at this time, the signal output module 10 and the pad module 30 establish a connection relationship, and the analog signal output by the analog signal output module 10 is transmitted to the pad module 30; meanwhile, since the first control signal is a high level signal, the pad module 30 is controlled by the first control signal to operate in an analog mode, and outputs the analog signal to the outside.
In an example, when the control module 40 outputs a second control signal (for example, a low level), the second control signal is buffered by the first buffer 201 and the second buffer 202 and then is inverted by the inverter 203 to obtain an inverted second control signal (a high level), the switch 204 is turned off by the inverted second control signal, at this time, the signal output module 10 is disconnected from the pad module 30, and the analog signal output by the analog signal output module 10 cannot be transmitted to the pad module 30 through the switch module 20; meanwhile, since the second control signal is a low level signal, the pad module 30 is controlled by the second control signal to operate in the digital mode, and will perform transmission of the digital signal.
By arranging the switch module, the PAD module 30 can be prevented from generating signal interference with the analog signal output module 10 when the PAD module operates in a digital mode after the first power supply is disconnected, and the conditions of PAD function error, electric leakage, RF current sinking and the like can be avoided.
In a possible implementation manner, the control module 40 may include a control submodule 401 and a register 402, and the control submodule 401 may be configured to generate the first control signal or the second control signal according to control information input from the outside, and configure the first control signal or the second control signal into the register 402.
In one possible embodiment, the register 402 may be configured with the second control signal in the initial state, that is, the pad module 30 operates in the digital mode in the default state. When analog multiplexing is required, the control submodule 401 configures a first control signal in the register 402.
In a possible implementation, the control module 40 may further include an or mode indicating circuit 403, a first data selector 404,
the mode indication circuit 403 may be configured to output a preset indication signal when the apparatus is in a register SCAN mode (SCAN) or a Memory Built In Self Test (MBIST);
a first input terminal of the first data selector 404 is configured to input the data in the register 402, a second input terminal of the first data selector 404 is configured to input the second control signal generated by the control sub-module 401, and the first data selector 404 is configured to output the second control signal when receiving a preset indication signal output by the mode indication circuit 403, and otherwise, output the data in the register.
The register scanning mode is used for scanning the registers of the chips in the device so as to detect whether the registers have problems or not. The memory test mode is used for testing the memory cells of the chip on the device to detect whether the memory cells have problems.
In one possible implementation, the mode indication circuit 403 may include an or gate.
In a possible embodiment, the preset indication signal may be a high level signal (1).
In one example, in the case where the device is in SCAN mode or BIST mode, the mode indication circuit 403 is equivalent to the input being logic high (1), when the output is also logic high (1), i.e., a high level signal is output.
It should be noted that the data in the register 402 can be the first control signal or the second control signal, that is, the pad module 30 can operate in either the digital mode or the analog mode before the device is switched to the SCAN mode or the BIST mode, depending on the control information.
In one possible embodiment, in case the apparatus is in the SCAN mode or the BIST mode, the control module 40 may turn off the first power supply 501, thereby causing the analog signal output module 10 to be in a sleep or off state, thereby saving power.
In a possible implementation, the control module 40 is configured to output the second control signal when the first power supply 501 is turned off.
That is, the control module 40 may monitor the state of the first power supply 501 in real time, and output the second control signal when the first power supply 501 is turned off, so that the switch module 20 disconnects the analog signal output module 10 and the pad module 30, and the pad module 30 operates in the digital mode.
With such an arrangement, the present disclosure can cause the pad module 30 to operate in the digital mode with the apparatus in the SCAN mode or the BIST mode, and can cause the switch module 20 to be turned off, avoiding the influence on the digital side and the analog side.
In a possible implementation manner, the control module 40 further includes a second data selector 405, a first input terminal of the second data selector 405 is used for inputting the first data, a second input terminal of the second data selector is used for inputting the second data, and a control terminal of the second data selector 405 is used for inputting the control signal (a control terminal of the second data selector 405 is connected to the output terminal of the first data selector 404, and receives the first control signal or the second control signal output by the first data selector), wherein,
when the control signal is the first control signal, the second data selector 405 outputs the first data, where the first data is used to control the pull-up and pull-down functions of the pad module 30 to be in an off state, the current driving strength to be a preset value, the input signal to be a preset value, the schmitt (Smit) function to be in an off state, and the output enable terminal to be in an inactive state;
when the control signal is the second control signal, the data selector 405 outputs the second data, and the second data is used for normally configuring the pad module 30.
In one possible embodiment, the digital pads in the pad module 30 may include:
the pull-up resistor and the pull-down resistor are used for realizing pull-up and pull-down functions;
the signal conversion circuit may convert an analog signal into a digital signal, and may include: the Schmitt trigger is used for carrying out comparison and judgment;
the output enable terminal is used for controlling whether to output the digital signal, and the digital pad cannot work in a digital mode under the condition that the output enable terminal is in an invalid state.
The digital bonding pad can not work in a digital mode (transmitting digital signals) by setting the pull-up and pull-down functions to be in a closed state, setting the current driving strength to be a preset value, setting the input signal to be a preset value, enabling the Schmitt function to be in a closed state and enabling the output end to be in an invalid state, so that the digital bonding pad can transmit analog signals and works in an analog mode (transmitting analog signals).
The digital pads may also include electrostatic protection circuitry (ESD) that may still be used when multiplexed to operate in analog mode.
In a possible embodiment, the preset value of the current driving strength, the preset value of the input signal can be set as required. For example, the preset value of the input signal may be set to 0.
When the control signal is the first control signal, the PAD module 30 operates in the analog mode, in which case all digital signals affecting the input and output states of the PAD need to be switched to a fixed state, so as to ensure that the connection portion of the PAD is in a high impedance (floating) state, thereby avoiding the digital signals affecting the PAD operating in the analog mode.
Of course, when the PAD module 30 operates in the analog mode, the above configuration of the parameters of the PAD module 30 is not exhaustive, and a person skilled in the art may configure other PAD parameters as needed, so as to switch the digital signals to the fixed state, and the disclosure is not limited thereto.
When the control signal is the second control signal, the PAD module 30 operates in the digital mode, in which case, a person skilled in the art may complete configuration of parameters of the digital PAD as needed, and the disclosure is not limited thereto.
The first data and the second data may be configured in advance as needed, and the configuration of the first data and the second data is not limited in this disclosure, and those skilled in the art may configure in a suitable manner as needed.
Through the above configuration, the PAD module 30 can normally work no matter in an analog mode or a digital mode, and no interference is generated to influence the PAD function.
According to the pad multiplexing device disclosed by each embodiment of the disclosure, multiplexing of the pad module can be realized, so that the pad module can work in an analog mode and can also work in a digital mode. The utilization rate of the pad module is improved, so that the area of a PCB is saved, and the pad module can be multiplexed, so that more signals can be transmitted, and the pad module is favorable for developing other functions.
Referring to fig. 3, fig. 3 is a block diagram of a pad multiplexing apparatus according to an embodiment of the disclosure.
For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 3, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (12)
1. A pad multiplexing device, comprising an analog signal output module, a switch module, a pad module, and a control module, wherein,
the analog signal output module is used for outputting an analog signal;
the switch module is electrically connected to the analog signal output module and the pad module;
the pad module comprises at least one digital pad;
the control module is electrically connected to the pad module and the switch module, and is configured to generate a control signal, where the control signal includes a first control signal and a second control signal, where the first control signal is used to control the switch module to be turned on so as to transmit the analog signal to the pad module, and is used to control the pad module to operate in an analog mode;
the second control signal is used for controlling the switch module to be disconnected so as to cut off the electrical connection relation between the analog signal output module and the pad module, and controlling the pad module to work in a digital mode.
2. The apparatus of claim 1, further comprising a power module for powering the pad module, the switch module, the analog signal output module, and the control module;
the power supply module comprises a first power supply, a second power supply and a third power supply,
the first power supply is used for supplying power to the analog signal output module,
the second power supply is used for supplying power to the pad module,
the third power supply is used for supplying power to the control module,
the first power supply and the second power supply are also used for supplying power to the switch module at the same time.
3. The apparatus of claim 1 or 2, wherein the switch module comprises a first buffer, a second buffer, an inverter and a switch electrically connected in sequence,
the input end of the first buffer is used for inputting the control signal,
the first buffer and the second buffer are used for sequentially buffering the control signal,
the inverter is used for carrying out inversion processing on the control signal after the buffering processing to obtain the control signal after the inversion processing,
the control end of the switch is used for inputting the control signal after the phase inversion processing, the input end of the switch is electrically connected to the analog signal output module, and the output end of the switch is electrically connected to the pad module.
4. The apparatus of claim 3, wherein the power module of the apparatus comprises a first power source and a second power source for simultaneously powering the switch module,
the first power supply is used for supplying power to the first buffer, and the second power supply is used for supplying power to the second buffer, the phase inverter and the switch.
5. The apparatus of claim 3, wherein the switch comprises a PMOS transistor or a pair transistor consisting of a PMOS transistor and an NMOS transistor.
6. The device according to claim 1 or 2, wherein the control module comprises a control submodule and a register, and the control submodule is configured to generate the first control signal or the second control signal according to control information input from the outside and configure the first control signal or the second control signal into the register.
7. The apparatus of claim 6, wherein the power module of the apparatus comprises a third power source for powering the control module, the third power source being from a normally-charged power domain.
8. The apparatus of claim 6, wherein the control module further comprises an OR mode indication circuit, a first data selector,
the mode indicating circuit is used for outputting a preset indicating signal under the condition that the device is in a register scanning mode or a memory test mode;
the first input end of the first data selector is used for inputting the data in the register, the second input end of the first data selector is used for inputting the second control signal, the first data selector is used for outputting the second control signal under the condition of receiving a preset indication signal output by the mode indication circuit, and otherwise, the first data selector outputs the data in the register.
9. The apparatus of claim 1 or 8, wherein the control module further comprises a second data selector having a first input for inputting first data, a second input for inputting second data, and a control terminal for inputting the control signal, wherein,
when the control signal is the first control signal, the second data selector outputs the first data, and the first data is used for controlling the pull-up and pull-down functions of the pad module to be in an off state, the current driving strength to be a preset value, the input signal to be a preset value, the schmitt function to be in an off state, and the output enable end to be in an invalid state;
and when the control signal is the second control signal, the data selector outputs the second data, and the second data is used for normally configuring the pad module.
10. The apparatus of claim 2, wherein the control module is further configured to turn off the first power supply if the apparatus is in a register scan mode or a memory test mode.
11. The apparatus of claim 2 or 10, wherein the control module is configured to output the second control signal when the first power supply is turned off.
12. An electronic device, characterized in that the electronic device comprises a pad multiplexing apparatus according to any of claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910645121.4A CN111294036A (en) | 2019-07-17 | 2019-07-17 | Pad multiplexing device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910645121.4A CN111294036A (en) | 2019-07-17 | 2019-07-17 | Pad multiplexing device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111294036A true CN111294036A (en) | 2020-06-16 |
Family
ID=71024637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910645121.4A Pending CN111294036A (en) | 2019-07-17 | 2019-07-17 | Pad multiplexing device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111294036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115938439A (en) * | 2023-01-06 | 2023-04-07 | 芯天下技术股份有限公司 | Nor Flash without inductive capacity expansion, sensing circuit and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020152439A1 (en) * | 2001-04-11 | 2002-10-17 | Nam-Seog Kim | Method of outputting internal information through test pin of semiconductor memory and output circuit thereof |
| CN1498423A (en) * | 2001-03-02 | 2004-05-19 | �����ɷ� | Mixed analog and digital inegrated circits |
| CN102354536A (en) * | 2011-07-05 | 2012-02-15 | 上海宏力半导体制造有限公司 | Test interface structure, test circuit and test method |
| CN206100257U (en) * | 2016-08-05 | 2017-04-12 | 浙江大华技术股份有限公司 | Compatible processing apparatus of data signal and analog signal |
-
2019
- 2019-07-17 CN CN201910645121.4A patent/CN111294036A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498423A (en) * | 2001-03-02 | 2004-05-19 | �����ɷ� | Mixed analog and digital inegrated circits |
| US20020152439A1 (en) * | 2001-04-11 | 2002-10-17 | Nam-Seog Kim | Method of outputting internal information through test pin of semiconductor memory and output circuit thereof |
| CN102354536A (en) * | 2011-07-05 | 2012-02-15 | 上海宏力半导体制造有限公司 | Test interface structure, test circuit and test method |
| CN206100257U (en) * | 2016-08-05 | 2017-04-12 | 浙江大华技术股份有限公司 | Compatible processing apparatus of data signal and analog signal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115938439A (en) * | 2023-01-06 | 2023-04-07 | 芯天下技术股份有限公司 | Nor Flash without inductive capacity expansion, sensing circuit and electronic equipment |
| CN115938439B (en) * | 2023-01-06 | 2023-05-09 | 芯天下技术股份有限公司 | Nor Flash without sense expansion, sensing circuit and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103558749B (en) | Intelligent watch | |
| US8390666B2 (en) | Terminal and control method thereof | |
| EP3930298A1 (en) | Mobile terminal and electronic device having mobile terminal | |
| JP6228716B2 (en) | Interface circuit, state switching method and apparatus | |
| US11284398B2 (en) | Communication link configuration method and device | |
| CN105636176A (en) | Network sharing method and device | |
| KR20210025967A (en) | Mobile terminal and electronic device comprising the mobile terminal | |
| CN111837378A (en) | Mobile terminal and electronic equipment with same | |
| KR101557354B1 (en) | Portable electronic device and method for controlling operational mode thereof | |
| CN102073282B (en) | Electronic apparatus and power-supply control apparatus and method | |
| CN111294036A (en) | Pad multiplexing device and electronic equipment | |
| KR20110027478A (en) | Mobile terminal and control method thereof | |
| CN112448745B (en) | WIFI antenna selection control device, method and terminal | |
| CN105072245A (en) | Network service providing method and device | |
| US9386253B2 (en) | Electronic television comprising mobile phone apparatus | |
| CN112100117A (en) | Power supply multiplexing circuit, data signal switching method and device and electronic equipment | |
| CN107749751B (en) | Mobile terminal power supply system and mobile terminal | |
| CN218040875U (en) | Charging circuit, chip and terminal | |
| CN219643631U (en) | Wireless charging device and electronic equipment | |
| CN217932695U (en) | Control device for working assembly and electronic equipment | |
| CN219304829U (en) | Electronic equipment | |
| CN219536059U (en) | Identification card switching circuit and mobile terminal | |
| CN219477638U (en) | Screen driving chip power supply system and terminal equipment | |
| JP2005252386A (en) | Information terminal | |
| CN103092306B (en) | Messaging device and power-supply switching method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |