MODEM interface circuit

Published:2011/6/19 2:58:00 Author:John | Keyword: MODEM interface | From:SeekIC

MODEM module has been understand well, so the design for its interface circuit is relatively easy. Although MODEM provides many control lines, considering the simplicity of the interface design and the connection between the MODEM module and a microcontroller through the UART, two lines (TXD, RXD) connection is needed. Communication control on MODEM is implementated through software. Using software control is rather flexible and is also a good way to avoid excessive hardware signal detection.



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