MB90480/485 Series
2. UART
The UART is a serial I/O port for asynchronous (start-stop synchronized) communication as well as CLK
synchronized communication.
• Full duplex double buffer
• Transfer modes : asynchronous (start-stop synchronized) , or CLK synchronized (no start bit or stop bit) .
• Multi-processor mode supported.
• Embedded proprietary baud rate generator
Asynchronous
: 76923/38461/19230/9615/500 k/250 kbps
CLK synchronized : 16 M/8 M/4 M/2 M/1 M/500 kbps
• External clock setting available, allows use of any desired baud rate.
• Can use internal clock feed from PPG1.
• Data length : 7-bit (asynchronous normal mode only) or 8-bit.
• Master/slave type communication functions (in multi-processor mode) .
• Error detection functions (parity, framing, overrun)
• Transfer signals are NRZ encoded.
• µDMAC supported (for receiving/sending)
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