XR17C158 Datasheet | Exar

.. xr AUGUST 2005 5V PCI BUS OCTAL UART REV. 1.4.3 GENERAL DESCRIPTION The XR17C1581 (158) is an octal Universal Asynchronous Receiver and Transmitter (UART). The device is designed to meet the 32-bit PCI Bus and high bandwidth requirement in munication systems. The global interrupt source register provides a plete interrupt status indication for all 8 channels to speed up interrupt parsing. Each UART has its own 16C550 patible set of configuration registers, transmit and receive FIFOs of 64 bytes, fully programmable transmit and receive FIFO level triggers, transmit and receive FIFO level counters, automatic RTS/CTS or DTR/DSR hardware flow control...