Cycle address type three-line SPI communication system
A communication system, SPI interface technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as increasing connection complexity, and achieve the effects of simplifying physical connections, improving compatibility, and reducing costs
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[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0030] Such as figure 2 As shown, the three-wire SPI control system is composed of data length counter DLCT, data length shift register DLSR, frame counter FCT, zero comparator, address counter ACT, selection counter SCT and address decoder.
[0031] The data length counter DLCT is respectively connected with the selection counter SCT, the zero comparator and the frame counter FCT, the data length shift register DLSR is respectively connected with the frame counter FCT and the zero comparator, and the zero comparator is respectively connected with the address counter ACT and the selection counter SCT, The selection counter SCT is connected with the address decoder through the CS delayer. The frame counter FCT is connected to the data length counter DLCT and the data length shift register DLSR respectively.
[0032] The data length counter DLCT is u...
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