Abstract: This application note, the first in a series exploring the features of the MAX3108 high-performance universal asynchronousreceiver/transmitter (UART) in detail, explains the basic interface between the MAX3108 and the controlling microprocessor. Theapplication note briefly covers hardware connectivity via 2, 4, or 6 pins; the implementation of 31 registers, which are accessiblea SPI or an I²C interface; and three reset mechanisms. A more detailed explanation of SPI and I²C interfaces and examplesof pseudocode follows.
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