ST16C654 -Quad UART With 64-Byte FIFO And Infrared (IrDA) Encoder/DecoderThe ST16C654 ST16C654D (654) is an enhanced quad
Universal Asynchronous Receiver and Transmitter
(UART) each with 64 bytes of transmit and receive
FIFOs transmit and receive FIFO trigger levels,
Automatic hardware and software flow control, and
data rates of up to 1.5 Mbps. Each UART has a set
of Registers that provide the user with operating status
and control, receiver error indications, and modem
serial Interface controls. Selectable interrupt polarity
provides flexibility to meet design requirements. An
internal loopback capability allows onboard By Exar Corporation
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