PC16552D Datasheet | National Semiconductor

PC16552D Dual Universal Asynchronous Receiver Transmitter with FIFOs June 1995 PC16552D Dual Universal Asynchronous Receiver Transmitter with FIFOs General Description The PC16552D is a dual version of the PC16550D Universal Asynchronous Receiver Transmitter (UART) The two serial channels are pletely independent except for a mon CPU interface and crystal input On power-up both channels are functionally identical to the 16450 Each channel can operate with on-chip transmitter and receiver FIFOs (FIFO mode) to relieve the CPU of excessive software overhead In FIFO mode each channel is capable of buffering 16 bytes (plus 3 bits of error data per byte in the RCVR FIFO) of data in both...