Multi-serial port data communication card equipment based on CPCI bus and method thereof
A technology of bus communication and data communication, applied in the field of data communication, to achieve the effect of simplifying switching circuits, high data transmission rate, and wide application range
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[0046] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.
[0047] see figure 1 As shown, the multi-serial port data communication card device based on the CPCI bus, including:
[0048] (1) CPCI bus communication module, this CPCI bus communication module is connected with host system by CPCI bus, and submits data to host system and receives the sending data of host system; Described CPCI bus communication module is PCI slave device manager ;
[0049] (2) at least two UART communication management modules with automatic RS485 communication flow control function, each described UART communication management module is connected with the described CPCI bus communication module respectively, carries out the sending and receiving processing of communication data, and when data is sent Complete or when receiving data arrives, send interrupt notification to host system by CPCI bus; Described UART communica...
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