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xr
XR17D158
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
AUGUST 2005
GENERAL DESCRIPTION
FEATURES
REV. 1.2.2
The XR17D1581 (D158) is an octal PCI Bus Universal Asynchronous Receiver and Transmitter (UART) with support for PCI Bus universal VIO buffers in the same package and pin-out as the XR17C158, XR17C154 and XR17D154. The device is designed to meet the 32-bit PCI Bus and high bandwidth requirement in communication systems. A global interrupt source register provides a complete interrupt status indication for all 8 channels to speed up interrupt parsing.