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You are here: Home / Replies / Hi Jason,The synchronous mode

Hi Jason,The synchronous mode

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Microcontroller › PIC › Distingusihing between Asynchronous and Synchronous modes in USART › Hi Jason,The synchronous mode

April 8, 2013 at 12:24 pm #9444
AJISH ALFRED
Participant

Hi Jason,

The synchronous mode requires a dedicated CLOCK pin for synchronizing the devices, whereas the asysnchronous mode achieve syncronization without a CLOCK pin by sending synchronization bits.

If your RS232 port has 25 pins then it can do both synchronous and asynchronous transmission and reception, if there is only 9 pins then asynchronous mode is only possible

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