1. Double or quadruple UART
2. Supports multi-protocol RS-232, RS-422, and RS-485
3. Two-way speed of up to 25 Mbps per port
4. Full serial modem control
5. Support hardware and software flow control
6. Support 5, 6, 7, 8 and 9 bit serial format
7. Supports even, odd, none, Spaces, and marked parity
8. Support custom baud rate through internal PLL or external clock
9. Support 256-byte deep FIFO on chip, send and receive path of each serial port
10. Supports remote wake-up and power supply
2. Supports multi-protocol RS-232, RS-422, and RS-485
3. Two-way speed of up to 25 Mbps per port
4. Full serial modem control
5. Support hardware and software flow control
6. Support 5, 6, 7, 8 and 9 bit serial format
7. Supports even, odd, none, Spaces, and marked parity
8. Support custom baud rate through internal PLL or external clock
9. Support 256-byte deep FIFO on chip, send and receive path of each serial port
10. Supports remote wake-up and power supply