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Dual Channel UART with Scalable Rx-FIFO
Universal asynchronous receiver and transmitter using the RS232 protocol are often used to connect peripheral devices to a central controller.
The DUARTmodule has two receive and two transmit channel, receive and transmit buffers, an interrupt controller as well as a local bus interface. The built-in receive buffer is configurable in depth, therefore, enabling a gate count and application optimized implementation. The baudrate generator uses a innovative digital controlled oscillator (DCO) to generate baudrates over a wide frequency range. With a system clock of 8MHz, all baudrates from 1200 baud to 115.2 kbaud have an accuracy of better than 0.1%!
To improve glitch rejection, the receiver uses a 3-point input sampling. Format and parity errors are detected and reported.
The DUARTmodule has two receive and two transmit channel, receive and transmit buffers, an interrupt controller as well as a local bus interface. The built-in receive buffer is configurable in depth, therefore, enabling a gate count and application optimized implementation. The baudrate generator uses a innovative digital controlled oscillator (DCO) to generate baudrates over a wide frequency range. With a system clock of 8MHz, all baudrates from 1200 baud to 115.2 kbaud have an accuracy of better than 0.1%!
To improve glitch rejection, the receiver uses a 3-point input sampling. Format and parity errors are detected and reported.
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