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.
CN103530249AInactive Publication Date: 2014-01-22NANNING FUGUI PRECISION IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANNING FUGUI PRECISION IND CO LTD
Publication Date
2014-01-22
Estimated Expiration
Not applicable · inactive patent

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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.
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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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