CN112233710A - Mobile solid state disk circuit with plug-in CC logic function and mobile solid state disk - Google Patents
Mobile solid state disk circuit with plug-in CC logic function and mobile solid state disk Download PDFInfo
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- CN112233710A CN112233710A CN202011088194.7A CN202011088194A CN112233710A CN 112233710 A CN112233710 A CN 112233710A CN 202011088194 A CN202011088194 A CN 202011088194A CN 112233710 A CN112233710 A CN 112233710A
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/12—Apparatus or processes for interconnecting storage elements, e.g. for threading magnetic cores
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
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Abstract
The invention discloses a mobile solid state disk circuit with a plug-in CC logic function and a mobile solid state disk, wherein the circuit comprises: the interface module is used for data interaction between the mobile solid state disk and peripheral equipment; a flash memory module for reading and storing data; the power supply module is used for supplying power to each functional module on the circuit; the control module is used for controlling the work of each functional module on the circuit; the channel switching module is used for identifying whether the mobile solid state disk is in a forward insertion state or a backward insertion state and switching a specified channel for communication between the interface module and the control module; the channel switching module comprises a switching unit and a first peripheral circuit, wherein the first peripheral circuit is used for identifying whether the mobile solid state disk is in a forward insertion state or a reverse insertion state, the switching unit is used for switching channels, and the switching unit comprises a DeMuxswitch or a Muxswitch. Compared with the prior art, the circuit does not need to use a special Type-C management chip, but uses the channel switching chip, and greatly reduces the production cost of the mobile solid state disk.
Description
Technical Field
The invention relates to the field of mobile solid state disks, in particular to a mobile solid state disk circuit with a plug-in CC logic function and a mobile solid state disk.
Background
The mobile solid state disk is gradually accepted and used by the masses due to the advantages of high read-write speed, low power consumption, no noise and the like. In the mobile solid state disk circuit with the Type-C interface, a special Type-C management chip is required to be adopted, and the chip has a CC function and is used for identifying whether the hard disk is in a forward or reverse insertion state, so that a specific channel is switched to realize data interaction. In the existing Type-C management chip, common models include EJ179V and AQ302, and the price is relatively high. Therefore, it is very important to reduce the production cost of the mobile solid state disk on the premise of maintaining the performance unchanged.
Disclosure of Invention
The invention mainly aims to provide a mobile solid state disk circuit with a plug-in CC logic function, and aims to solve the technical problem of reducing the production cost of a mobile solid state disk.
The invention provides a mobile solid state disk circuit with a plug-in CC logic function, which comprises:
the interface module is used for data interaction between the mobile solid state disk and peripheral equipment;
a flash memory module for reading and storing data;
the power supply module is used for supplying power to each module on the mobile solid-state hard disk circuit;
the control module is used for controlling the work of each module on the mobile solid-state hard disk circuit;
the system comprises a channel switching module, a control module and a switching unit, wherein the channel switching module is used for realizing a CC logic function and switching a designated channel, the designated channel is used for realizing communication between an interface module and the control module, the channel switching module comprises a switching unit and a first peripheral circuit, the signal output end of the first peripheral circuit is connected with the signal input end of the switching unit, the first peripheral circuit is used for identifying whether the mobile solid state disk is in a forward insertion state or a backward insertion state, the switching unit is used for switching the designated channel, and the switching unit comprises a DeMux Switch or a Mux Switch;
the interface module is electrically connected with the channel switching module, the control module, the flash memory module and the power supply module in sequence.
Preferably, the first peripheral circuit includes a first resistor, a second resistor, a third resistor, and a fourth resistor;
the interface module comprises a first interface, a second interface, a fifth resistor and a first power supply output end;
the first interface is grounded through a first resistor;
the first end of the second interface is grounded through a second resistor and a third resistor, the first power supply output end of the interface module is connected with the switching signal input end of the switching unit through a fifth resistor and a fourth resistor, and the second resistor is connected with the third resistor in series.
Preferably, the control module comprises a clock module, a control chip and a second peripheral circuit, wherein the second peripheral circuit is used for supplying power to the power module and the channel switching module;
the interface module is electrically connected with a second peripheral circuit, and the second peripheral circuit is respectively electrically connected with the channel switching module and the power supply module;
the control chip is electrically connected with the second peripheral circuit and the power supply module;
the clock module is electrically connected with the control chip.
Preferably, the second peripheral circuit includes a first voltage-decreasing unit and a second voltage-decreasing unit;
the power supply module comprises a first power supply unit and a second power supply unit;
the first power supply output end of the first voltage reduction unit is connected with the power supply input end of the first power supply unit, the first power supply output end of the first power supply unit is connected with the first power supply input end of the control chip, and the second power supply output end of the first power supply unit is connected with the first power supply input end of the flash memory module;
the second power supply output end of the first voltage reduction unit is connected with the power supply input end of the channel switching module;
the first power supply output end of the second voltage reduction unit is connected with the power supply input end of the second power supply unit, the first power supply output end of the second power supply unit is connected with the second power supply input end of the control chip, and the second power supply output end of the second power supply unit is connected with the third power supply input end of the control chip;
and the second power supply output end of the second voltage reduction unit is connected with the second power supply input end of the flash memory module.
Preferably, the interface module, the switching unit, the control chip and the flash memory module are electrically connected in sequence.
Preferably, the second peripheral circuit further includes a third voltage-decreasing unit;
the power supply input end of the third voltage reduction unit is connected with the third power supply output end of the first voltage reduction unit;
and the power supply output end of the third voltage reduction unit is connected with the fourth power supply input end of the control chip.
Preferably, the flash memory module further comprises a flash memory chip matrix, wherein the flash memory chip matrix at least comprises two flash memory chips, and each flash memory chip is electrically connected with the control module and the power supply module respectively.
Preferably, the mobile solid state disk circuit with the external CC logic function further comprises an LED module;
the LED module is electrically connected with the power supply module and the control module respectively.
The invention also provides a mobile solid state disk which comprises the mobile solid state disk circuit with the plug-in CC logic function.
The invention has the beneficial effects that: this circuit need not to use dedicated Type-C management chip, but uses the passageway to Switch the chip, DeMux Switch or Mux Switch promptly, realizes the required signal switching function of the two-sided plug of Type-C to under the prerequisite of guaranteeing the performance, reduce the manufacturing cost of removing solid state hard disk by a wide margin.
Drawings
FIG. 1 is a schematic structural diagram of a mobile solid state drive circuit with a plug-in CC logic function according to a first embodiment of the present invention;
FIG. 2 is a first partial schematic diagram of a mobile solid state drive circuit with a plug-in CC logic function shown in FIG. 1;
FIG. 3 is a second partial schematic diagram of the mobile solid state drive circuit with a plug-in CC logic function shown in FIG. 1;
fig. 4 is a schematic structural diagram of a channel switching module of the mobile solid state disk circuit with a plug-in CC logic function in fig. 2;
FIG. 5 is a schematic structural diagram of an interface module of the mobile solid state disk circuit with a plug-in CC logic function shown in FIG. 2;
FIG. 6 is a schematic structural diagram of a control module of the mobile solid state disk circuit with a plug-in CC logic function shown in FIG. 2;
FIG. 7 is a schematic structural diagram of an LED module of the mobile solid state drive circuit with a plug-in CC logic function shown in FIG. 2;
fig. 8 is a schematic structural diagram of a power module of the mobile solid state disk circuit with the external CC logic function in fig. 2.
Description of reference numerals:
1. an interface module;
2. a flash memory module;
3. a power supply module; 31. a first power supply unit; 32. a second power supply unit;
4. a control module; 41. a clock module; 42. a control chip; 43. a second peripheral circuit;
5. a channel switching module; 51. a switching unit; 52. a first peripheral circuit;
6. an LED module.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4, the present invention provides a mobile solid state disk circuit with a plug-in CC logic function, including:
the interface module 1 is used for data interaction between the mobile solid state disk and peripheral equipment;
a flash memory module 2 for reading and storing data;
the power module 3 is used for supplying power to each functional module on the mobile solid-state hard disk circuit;
the control module 4 is used for controlling the work of each functional module on the mobile solid-state hard disk circuit;
the channel switching module 5 is used for identifying whether the mobile solid state disk is in a forward insertion state or a reverse insertion state, and switching a specified channel, wherein the specified channel is used for realizing communication between the interface module 1 and the control module 4;
the channel switching module 5 includes a switching unit 51 and a first peripheral circuit 52, wherein a signal output end of the first peripheral circuit 52 is connected to a signal input end of the switching unit 51, the first peripheral circuit 52 is configured to identify that the mobile solid state disk is in a forward insertion state or a backward insertion state, the switching unit 51 is configured to Switch a specified channel, and the switching unit 51 includes a DeMux Switch or a Mux Switch;
the interface module 1 is electrically connected with the channel switching module 5, the control module 4, the flash memory module 2 and the power supply module 3 in sequence.
In the embodiment of the invention, the CC function comprises the identification of the forward insertion and the backward insertion of the mobile solid state disk and the switching of the master device and the slave device. As shown in fig. 5, the interface module 1 includes a Type-C interface. The first peripheral circuit 52 includes a first resistor R30, a second resistor R31, a third resistor R1, and a fourth resistor R73. The first interface CC1 is grounded through a first resistor R30, and one end of the second interface CC2 is grounded through a second resistor R31 and a third resistor R1, wherein the second resistor R31 and the third resistor R1 are connected in series. The first power supply output terminal VUSB of the interface module 1 is connected to the switching signal input terminal (i.e., the SEL pin) of the switching unit 51 through the fifth resistor R25 and the fourth resistor R73. The host terminal CC pin is provided with a pull-up resistor, and when the mobile solid state disk is inserted into the host, the pull-down resistor (i.e. the first resistor R30 and the second resistor R31 are pulled down, and the voltages of the first resistor R30 and the second resistor R31 are pulled down from 5V to 0.417-0.85V) is detected by the host CC pin of the host, which indicates that the mobile solid state disk is connected to the host, and the switching of the master-slave mode is completed, where the host is a master device and the mobile solid state disk is a slave device.
In the embodiment of the present invention, the first peripheral circuit 52 is used for identifying whether the mobile hard disk is in a forward insertion state or a backward insertion state, and the specific principle is that when the mobile solid state disk is in a forward insertion state, the external voltage of the first interface CC1 is reduced by pulling down the first resistor R30, and the switching unit 51 receives the reduced external voltage, so that it can know that the mobile solid state disk is in the forward insertion state; when the mobile solid state disk is reversely plugged, the external voltage of the second interface CC2 is pulled down through the second resistor R31, and the switching unit 51 receives the lowered external voltage, so that it can know that the mobile solid state disk is in the reverse plugging state. In the embodiment of the present invention, the process of the switching unit 51 and the first peripheral circuit 52 working cooperatively is as follows: when the mobile solid state disk is inserted, the first interface CC1 is communicated, the second interface CC2 is suspended, the voltage of the second interface CC2 end is 0, the level signal realizes the switching of the master-slave mode, the switching unit 51 is U1, the SEL end is pulled up through the fourth resistor R73 and pulled down through the third resistor R1 and the second resistor R31, the voltage clamp of the SEL end is 1.75V to 1.95V, and at the moment, the interface module 1 interacts with the control module 4 through a first channel, namely pins No. 3, No. 4, No. 7 and No. 8 of the U1 are respectively connected with pins No. 19, No. 18, No. 17 and No. 16. When the mobile solid state disk is reversely plugged, the second interface CC2 is communicated, the second interface CC2 clamps the CC2 voltage at 0.417-0.85V through a pull-up resistor and an R31 pull-down resistor which are arranged on the host end, the CC2 level signal realizes master-slave mode switching, the SEL end is simultaneously pulled up in parallel through the pull-up resistor and a fourth resistor R73 which are arranged on the host end, and is pulled down in series through a third resistor R1 and a second resistor R31, the voltage of the SEL end is clamped at 2.05V-2.2V, and at the moment, the interface module 1 interacts with the control module 4 through a second channel, namely pins No. 3, No. 4, No. 7 and No. 8 of the slave U1 are respectively connected with pins No. 15, No. 14, No. 13 and No. 12. Therefore, the channel of interaction of the interface module 1 and the control module 4 is switched by the change of the SEL terminal voltage. When the SEL terminal voltage is less than 2V, interacting through a first channel; and when the SEL terminal voltage is more than or equal to 2V, interacting through a second channel. Therefore, the first peripheral circuit 52 is matched with the switching unit 51 to realize plug-in of the CC logic function. This circuit need not to use dedicated Type-C management chip, but uses the passageway to Switch over the chip, and DeMux Switch (shunt Switch) or Mux Switch (multiplexer Switch) promptly realize the required signal switching function of the two-sided plug of Type-C to under the prerequisite of guaranteeing the performance, reduce the manufacturing cost of removing solid state hard drives by a wide margin.
Referring to fig. 6, the control module 4 includes a clock module 41, a control chip 42 and a second peripheral circuit 43, wherein the second peripheral circuit 43 is used for supplying power to the power module 3 and the channel switching module 5;
the interface module 1 is electrically connected with a second peripheral circuit 43, and the second peripheral circuit 43 is electrically connected with the channel switching module 5 and the power supply module 3 respectively;
the control chip 42 is electrically connected with the second peripheral circuit 43 and the power module 3;
the clock module 41 is electrically connected to the control chip 42.
In the embodiment of the invention, when the mobile solid state disk is inserted into a host (such as a computer), the host supplies power to the mobile solid state disk, and a 5V power supply voltage is input into the mobile solid state disk. Then, the interface module 1 generates an input voltage of 5V, transmits the input voltage to the control chip 42, and reduces the input voltage to 3.3V and 1.2V respectively through the second peripheral circuit 43 (in other embodiments of the present invention, the voltage reduction can be adjusted according to actual requirements); the second peripheral circuit 43 outputs 3.3V to the switching unit 51 and the power module 3, the power module 3 generates 3.3V to output to the control chip 42 and the flash memory module 2, and generates 1.2V to output to the control chip 42, so that the control chip 42, the flash memory module 2, and the switching unit 51 can work normally, wherein the clock module 41 transmits a 24MHZ clock signal to the control chip 42. Specifically to the present circuit, as shown in fig. 6, the second peripheral circuit 43 includes a first voltage-reducing unit U16 and a second voltage-reducing unit U17, and the power supply module 3 includes a first power supply unit 31 and a second power supply unit 32. A first power supply output end (LX pin) of the first voltage-reducing unit U16 is connected to a power supply input end of the first power supply unit 31, and inputs a3.3V operating voltage to the first power supply unit 31; the first power supply unit 31 outputs a3.3V working voltage to the first power supply unit 31, in order to prevent crosstalk of different power supplies to functional modules in the circuit, the input voltage input to the first power supply unit 31 is divided into A3.3V and D3.3V by the magnetic bead L8, wherein both A3.3V and D3.3V are direct currents, A3.3V provides the working voltage to the control chip 42 through a pin 55 of the control chip 42, and D3.3V provides the working voltage to the flash memory module 2 through pins J3, J9, D7 and P5 of the flash memory chips U3 to U6; in addition, the first voltage-reducing unit 31 also outputs the operating voltage of 3.3V to the power supply input terminal of the channel switching module 5 (i.e., pins No. 1 and No. 10 of the switching unit 51) through the LX pin. In other embodiments of the present invention, the first power supply output terminal (LX pin) of the second voltage-reducing unit U17 is connected to the power supply input terminal of the second power supply unit 32, and 1.2V working voltage is input to the second power supply unit 32, in order to prevent crosstalk between different power supplies to the functional modules in the circuit, the input voltage input to the second power supply unit 32 is divided into A1.2V and D1.2V by the magnetic bead L5, wherein A1.2V and D1.2V are both direct currents, A1.2V supplies power to the control chip 42 through pins No. 7 and No. 26 of the control chip 42, and D1.2V supplies power to the control chip 42 through pin No. 12 of the control chip 42. In addition, the second voltage dropping unit U17 inputs an operating voltage of 1.2V to the second power supply input terminals (i.e., pins L3, L9, P2, P3, P9, P10, D2, D3, D9, D10, G3, and G9) of the flash memory chips U3 to U6 through the LX pin, so that the flash memory module 2 can operate normally.
Referring to fig. 2, the interface module 1, the switching unit 51, the control chip 42, and the flash memory module 2 are electrically connected in sequence.
In the embodiment of the present invention, the interface module 1, the switching unit 51, the control chip 42, and the flash memory module 2 are electrically connected in sequence. Take the process of storing and reading data in the mobile solid state disk as an example. Taking the data stored in the mobile solid state disk as an example, when the mobile solid state disk is connected, the pins a2, A3, B10 and B11 of the chip J1 of the interface module 1 are used as signal input terminals to be connected to peripheral devices, the external data are respectively communicated with the pins 19, 18, 17 and 16 through the pins 3, 4, 7 and 8 of the switching unit 51(U1), and the pins 19, 18, 17 and 16 of the switching unit 51 are used as signal output terminals to be connected to the signal input terminals (pins 63, 62, 60 and 59) of the control chip 42. The control chip 42 connects the signal inputs of the flash memory chip (i.e., pins M2 through M10, and pins F2 through F10) with pins 10 through 13, pins 20 through 22, pins 29 through 32, and pins 37 through 40 as signal outputs, thereby completing the storage of data from the host into the flash memory module 2.
In the data reading process, the original signal input end is changed into the signal output end, the original signal output end is changed into the signal input end, and the data flow direction is opposite to the process, so that the description is omitted.
In the embodiment of the invention, when the mobile solid state disk is reversely inserted, the mobile solid state disk is taken as an example for storing data. The pins a10, a11, B2 and B3 of the chip J1 of the interface module 1 are connected as signal input terminals to peripheral devices, external data are respectively communicated with the pins 15, 14, 13 and 12 through the pins 3, 4, 7 and 8 of the switching unit 51(U1), and are connected to the signal input terminals (pins 63, 62, 60 and 59) of the control chip 42 through the pins 15, 14, 13 and 12 of the switching unit 51 as signal output terminals. The control chip 42 connects the signal inputs of the flash memory chip (i.e., pins M2 through M10, and pins F2 through F10) with pins 10 through 13, pins 20 through 22, pins 29 through 32, and pins 37 through 40 as signal outputs, thereby completing the storage of data from the host into the flash memory module 2.
In the data reading process, the original signal input end is changed into the signal output end, the original signal output end is changed into the signal input end, and the data flow direction is opposite to the process, so that the description is omitted.
Referring to fig. 6, the second peripheral circuit 43 further includes a third voltage-decreasing unit U12;
the power supply input end of the third voltage reduction unit U12 is connected with the third power supply output end of the first voltage reduction unit U16;
the power supply output terminal of the third voltage-reducing unit U12 is connected to the fourth power supply input terminal of the control chip 42.
In the embodiment of the present invention, the third voltage-reducing unit U12 is a standby power supply of the control chip 42. Under normal conditions, the second power supply unit 32 supplies an operating voltage to the control chip 42. When the mobile solid state disk is in the high performance mode, the original operating voltage provided by the second power supply unit 32 is not enough to support the consumption of the control chip 42, and therefore, the third voltage dropping unit U12 needs to additionally provide the operating voltage to the control chip 42. The specific process is that the first voltage reduction unit U16 outputs the voltage of 3.3V to the third voltage reduction unit U12, and the third voltage reduction unit U12 reduces the working voltage of 3.3V to 1.2V and outputs the working voltage to pin No. 46 of the control chip 42. At the same time, the second power supply unit 32 still supplies the operating voltage to the control chip 42. In summary, the third voltage reduction unit U12 can satisfy the consumption of the mobile solid state disk in the high performance mode.
Referring to fig. 3, the flash memory module 2 further includes a flash memory chip matrix, wherein the flash memory chip matrix at least includes two flash memory chips, and each flash memory chip is electrically connected to the control module 4 and the power module 3, respectively.
In the embodiment of the present invention, the flash memory module 2 further includes a flash memory chip matrix, the flash memory chip matrix includes at least two flash memory chips, and each flash memory chip is electrically connected to the control module 4 and the power module 3, respectively. The flash memory chip is in a dual-channel mode, i.e., data exchange is performed with the peripheral device through pins M2-M10 as the first signal input/output terminal, and pins F2-F10 as the second signal input/output terminal. Through the dual-channel mode, the data interaction rate of the flash memory chip can be greatly improved.
Referring to fig. 2, the mobile solid state disk circuit with the external CC logic function further includes an LED module 6;
the LED module 6 is electrically connected to the power supply module 3 and the control module 4, respectively.
In the embodiment of the invention, when the mobile solid state disk is plugged into the host, the LED module 6 emits light to remind a user that the mobile solid state disk is in a working state. The specific process is that the first voltage reduction units U16 of the power module 3 and the control module 4 respectively provide operating voltages for the LED module 6 to illuminate.
Furthermore, the invention also provides a mobile solid state disk which comprises the mobile solid state disk circuit with the plug-in CC logic function.
In the embodiment of the invention, the CC function comprises the identification of the forward insertion and the backward insertion of the mobile solid state disk and the switching of the master device and the slave device. As shown in fig. 4, the interface module 1 includes a Type-C interface. The first peripheral circuit 52 includes a first resistor R30, a second resistor R31, a third resistor R1, and a fourth resistor R73. The first interface CC1 is grounded through a first resistor R30, one end of the second interface CC2 is grounded through a second resistor R31, and the other end of the second interface CC is connected to a switching signal input end (i.e., a SEL pin) of the switching unit 51 through a third resistor R1, the second resistor R31 and the third resistor R1 are grounded in series relative to the SEL end, the pull-down resistor of the CC2 is R31, and the pull-down resistor of the SEL is the third resistor R1 and the second resistor R31, so the pull-down resistor value of the SEL end is greater than the resistor value of the CC2 end, and different voltages of the CC2 and the SEL are realized; the first power supply output terminal VUSB of the interface module 1 is connected to the switching signal input terminal (i.e., the SEL pin) of the switching unit 51 through the fifth resistor R25 and the fourth resistor R73. When the mobile solid state disk is plugged into the host, the CC pin of the host detects the pull-down resistor (i.e. the voltage of the first resistor R30 and the second resistor R31 is pulled down, and the voltage of the first resistor R30 and the second resistor R31 is pulled down from 5V to 4.7V), which indicates that the mobile solid state disk is connected to the host, and the switching between the master mode and the slave mode is completed, where the host is the master device and the mobile solid state disk is the slave device.
In the embodiment of the present invention, the first peripheral circuit 52 is used for identifying whether the mobile hard disk is in a forward insertion state or a backward insertion state, and the specific principle is that when the mobile solid state disk is in a forward insertion state, the external voltage of the first interface CC1 is reduced by pulling down the first resistor R30, and the switching unit 51 receives the reduced external voltage, so that it can know that the mobile solid state disk is in the forward insertion state; when the mobile solid state disk is reversely plugged, the external voltage of the second interface CC2 is pulled down through the second resistor R31, and the switching unit 51 receives the lowered external voltage, so that it can know that the mobile solid state disk is in the reverse plugging state. In the embodiment of the present invention, the process of the switching unit 51 and the first peripheral circuit 52 working cooperatively is as follows: when the mobile solid state disk is inserted, the first interface CC1 is communicated, the second interface CC2 is suspended, the voltage of the second interface CC2 end is 0, the voltage of the CC1 end is clamped at 0.417-0.85V through a host end self-carrying pull-up resistor and an R30 pull-down resistor, the master-slave mode switching is realized through the level signal, the switching unit 51 is U1, the SEL end is pulled up through a fourth resistor R73, the third resistor R1 and the second resistor R31 are connected in series and pulled down, the SEL end voltage is 1.75V-1.95V, at the moment, the interface module 1 is interacted with the control module 4 through a first channel, namely pins No. 3, No. 4, No. 7 and No. 8 of the U1 are respectively connected with pins No. 19, No. 18, No. 17 and No. 16. When the mobile solid state disk is reversely plugged, the second interface CC2 is communicated, the second interface CC2 clamps the voltage of the CC2 terminal to 0.417V-0.85V through a host terminal pull-up resistor, a fourth resistor R73 and a third resistor R1 (the fourth resistor R73 and the third resistor R1 are in series connection), and a second resistor R31 pulls down a resistor, so that the master-slave mode switching is realized, the SEL terminal is pulled up through the fourth resistor R73 and pulled up through a host terminal self-carrying pull-up resistor in series, the third resistor R1 and the second resistor R31 are pulled down in series, and the voltage clamping is 2.05V-2.2V, at this time, the interface module 1 interacts with the control module 4 through a second channel, namely, pins No. 3, No. 4, No. 7 and No. 8 of the U1 are respectively connected with pins No. 15, No. 14, No. 13 and No. 12. Therefore, the channel of interaction of the interface module 1 and the control module 4 is switched by the change of the SEL terminal voltage. When the SEL terminal voltage is less than 2V, interacting through a first channel; and when the SEL terminal voltage is more than or equal to 2V, interacting through a second channel. Therefore, the first peripheral circuit 52 is matched with the switching unit 51 to realize plug-in of the CC logic function. This circuit need not to use dedicated Type-C management chip, but uses the passageway to Switch over the chip, and DeMux Switch (shunt Switch) or Mux Switch (multiplexer Switch) promptly realize the required signal switching function of the two-sided plug of Type-C to under the prerequisite of guaranteeing the performance, reduce the manufacturing cost of removing solid state hard drives by a wide margin.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A mobile solid state disk circuit with a plug-in CC logic function is characterized by comprising:
the interface module is used for data interaction between the mobile solid state disk and peripheral equipment;
a flash memory module for reading and storing data;
the power supply module is used for supplying power to each module on the mobile solid-state hard disk circuit;
the control module is used for controlling the work of each module on the mobile solid state hard disk circuit;
a channel switching module, configured to implement a CC logic function, and configured to Switch a designated channel, where the designated channel is used to implement communication between the interface module and the control module, where the channel switching module includes a switching unit and a first peripheral circuit, a signal output end of the first peripheral circuit is connected to a signal input end of the switching unit, the first peripheral circuit is used to identify that the mobile solid state disk is in a forward-plug state or a backward-plug state, the switching unit is used to Switch the designated channel, and the switching unit includes a DeMux Switch or a Mux Switch;
the interface module is electrically connected with the channel switching module, the control module, the flash memory module and the power supply module in sequence.
2. The mobile solid state disk circuit with plug-in CC logic function according to claim 1,
the first peripheral circuit comprises a first resistor, a second resistor, a third resistor and a fourth resistor;
the interface module comprises a first interface, a second interface, a fifth resistor and a first power supply output end;
the first interface is grounded through the first resistor;
the first end of the second interface is grounded through the second resistor and the third resistor, the first power supply output end of the interface module is connected with a switching signal input end of the switching unit through the fifth resistor and the fourth resistor, and the second resistor and the third resistor are connected in series.
3. The mobile solid state disk circuit with plug-in CC logic function according to claim 1,
the control module comprises a clock module, a control chip and a second peripheral circuit, wherein the second peripheral circuit is used for supplying power to the power module and the channel switching module;
the interface module is electrically connected with the second peripheral circuit, and the second peripheral circuit is respectively electrically connected with the channel switching module and the power supply module;
the control chip is electrically connected with the second peripheral circuit and the power supply module;
the clock module is electrically connected with the control chip.
4. The mobile solid state disk circuit with the plug-in CC logic function of claim 3, wherein the second peripheral circuit comprises a first voltage reduction unit and a second voltage reduction unit;
the power supply module comprises a first power supply unit and a second power supply unit;
a first power supply output end of the first voltage reduction unit is connected with a power supply input end of the first power supply unit, a first power supply output end of the first power supply unit is connected with a first power supply input end of the control chip, and a second power supply output end of the first power supply unit is connected with a first power supply input end of the flash memory module;
the second power supply output end of the first voltage reduction unit is connected with the power supply input end of the channel switching module;
a first power supply output end of the second voltage reduction unit is connected with a power supply input end of the second power supply unit, a first power supply output end of the second power supply unit is connected with a second power supply input end of the control chip, and a second power supply output end of the second power supply unit is connected with a third power supply input end of the control chip;
and the second power supply output end of the second voltage reduction unit is connected with the second power supply input end of the flash memory module.
5. The mobile solid state disk circuit with the plug-in CC logic function of claim 3, wherein the interface module, the switching unit, the control chip and the flash memory module are electrically connected in sequence.
6. The mobile solid state disk circuit with plug-in CC logic function according to claim 3, wherein the second peripheral circuit further comprises a third voltage reduction unit;
the power supply input end of the third voltage reduction unit is connected with the third power supply output end of the first voltage reduction unit;
and the power supply output end of the third voltage reduction unit is connected with the fourth power supply input end of the control chip.
7. The mobile solid state disk circuit with the plug-in CC logic function according to claim 1, wherein the flash memory module further comprises a flash memory chip matrix, wherein the flash memory chip matrix comprises at least two flash memory chips, and each flash memory chip is electrically connected with the control module and the power module respectively.
8. The mobile solid state disk circuit with the plug-in CC logic function according to claim 1, further comprising an LED module;
the LED module is electrically connected with the power supply module and the control module respectively.
9. A mobile solid state disk, comprising the mobile solid state disk circuit with the plug-in CC logic function of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011088194.7A CN112233710A (en) | 2020-10-13 | 2020-10-13 | Mobile solid state disk circuit with plug-in CC logic function and mobile solid state disk |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011088194.7A CN112233710A (en) | 2020-10-13 | 2020-10-13 | Mobile solid state disk circuit with plug-in CC logic function and mobile solid state disk |
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| Publication Number | Publication Date |
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| CN112233710A true CN112233710A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011088194.7A Pending CN112233710A (en) | 2020-10-13 | 2020-10-13 | Mobile solid state disk circuit with plug-in CC logic function and mobile solid state disk |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113590521A (en) * | 2021-06-24 | 2021-11-02 | 深圳市广和通无线股份有限公司 | USB interface module, device, data transmission interface module and communication system |
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2020
- 2020-10-13 CN CN202011088194.7A patent/CN112233710A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113590521A (en) * | 2021-06-24 | 2021-11-02 | 深圳市广和通无线股份有限公司 | USB interface module, device, data transmission interface module and communication system |
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