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Internal integration circuit bus transmission system and transmission method thereof

An internal integrated circuit and bus transmission technology, applied in the direction of electrical digital data processing, instruments, etc., can solve problems such as high operating costs, inability to change data content in real time, complex hardware structure of I2C bus transmission system, etc.

Inactive Publication Date: 2014-01-22
NANNING FUGUI PRECISION IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of data transmission, the main control device must pass through additional components, such as bidirectional buffers, switching units, input / output (Input / Output, IO) expansion chips, multiplexers, etc., in order to communicate with the A plurality of slave devices form a connected bidirectional channel, which makes the hardware structure of the I2C bus transmission system composed of the master control device and a plurality of slave control devices more complicated, and the overall operating cost is higher
In addition, in the process of data transmission, the content of such data cannot be changed in real time according to the demand, so the practicability is low

Method used

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  • Internal integration circuit bus transmission system and transmission method thereof
  • Internal integration circuit bus transmission system and transmission method thereof
  • Internal integration circuit bus transmission system and transmission method thereof

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Embodiment Construction

[0014] see figure 1 A preferred embodiment of the present invention provides an inter-integrated circuit (Inter-Integrated Circuit, I2C) bus transmission system 100 , including a master control device 11 , multiple slave devices 13 and a logic control unit 15 .

[0015] The main control device 11 may be a central processing unit (Center Processing Unit, CPU). The slave device 13 may be an integrated circuit (Integrated Circuit, IC). The logic control unit 15 is used as a transfer station to connect the master device 11 and the plurality of slave devices 13 , so that the two-way transmission of signals between the master device 11 and the plurality of slave devices 13 is realized. In this embodiment, the logic control unit 15 is implemented by a programmable logic device, such as a complex programmable logic device (Complex Programmable Logic Device, CPLD), a field programmable gate array (Field Programmable Gate Array, FPGA), etc. . Correspondingly, its logic function can b...

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Abstract

The invention provides an internal integration circuit bus transmission system which comprises a master control device, a plurality of slave devices and a logic control unit. The logic control unit comprises a detection module, a content change module and a control module. The detection module is used for receiving a command signal to judge the transmission direction of the next command signal according to the command signal, selecting the corresponding slave devices and switching corresponding data transmission directions. The content change module is used for changing the content of the command signal under control of the detection module. The control module is used for receiving the unchanged command signal from the detection module or the changed command signal to establish a transmission channel between the master control device and the selected slave devices, and transmitting the unchanged command signal or the changed command signal through the transmission channel according to the switched data transmission direction of the detection module. The invention further provides an internal integration circuit bus transmission method.

Description

technical field [0001] The invention relates to an internal integrated circuit (Inter-Integrated Circuit, I2C) bus transmission system and a transmission method thereof. Background technique [0002] Existing master devices, such as a central processing unit (CPU) and slave devices, such as integrated circuits (Integrated Circuit, IC) usually use the internal integrated circuit (Inter-Integrated Circuit, I2C) bus to establish corresponding data transmission aisle. In the process of data transmission, the main control device must pass through additional components, such as bidirectional buffers, switching units, input / output (Input / Output, IO) expansion chips, multiplexers, etc., in order to communicate with the A plurality of slave devices form a bidirectional channel for connection, which makes the hardware structure of the I2C bus transmission system formed by the master control device and the plurality of slave control devices more complex, and the overall operating cost...

Claims

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Application Information

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IPC IPC(8): G06F13/38
Inventor 张尧宗
Owner NANNING FUGUI PRECISION IND CO LTD
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