DS07-16303-3E Datasheet, PDF (39/97 Pages) Fujitsu Component Limited. – 32-bit RISC Microcontroller CMOS FR30 Series

MB91121
3. UART
The UART is a serial I/O port for supporting asynchronous (start-stop system) communication or CLK
synchronous communication, and it has the following features.
The MB91121 consists of 3 channels of UART.
• Full double double buffer
• Both a synchronous (start-stop system) communication and CLK synchronous communication are available.
• Supporting multi-processor mode
• Perfect programmable baud rate
Any baud rate can be set by internal timer (refer to section “4. U-TIMER”) .
• Any baud rate can be set by external clock.
• Error checking function (parity, framing and overrun)
• Transfer signal : NRZ code
• Enable DMA transfer start by interrupt.
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