Is there any UART chip that can provide a full 9-pin DCE serial port?
A full 9-pin DCE serial port requires 5 outputs (DCD, CTS, DSR, RI, TXD) and 3 inputs (RTS, DTR and RXD) and a GND.
The UART chip like TL16C2552 could interface a processor through the data/address/control lines and provide the serial ports. However, the UART chip TL16C2552 can only provide a full 9-pin DTE serial port. A DTE serial port requires 3 outputs (RTS, DTR and RXD), 5 inputs (DCD, CTS, DSR, RI, TXD), and a GND; this is exactly what the TL16C2552 can provide from its serial port.
I am wondering: is there any similar UART chip that can interface the processor and meanwhile can provide a full 9-pin DCE serial port?
What's the best solution to providing a full DCE serial port ?
