Datasheet Summary
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APRIL 2004
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
REV. 2.0.1
GENERAL DESCRIPTION
The XR16C8641 (864) is an enhanced quad Universal Asynchronous Receiver and Transmitter (UART) each with 128 bytes of transmit and receive FIFOs, transmit and receive FIFO counters and trigger levels, automatic hardware and software flow control, automatic RS-485 half-duplex direction control and data rates of up to 2 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. System interrupts may be tailored to meet design requirements. An internal loopback capability allows onboard...