Datasheet Summary
xr
AUGUST 2005
GENERAL DESCRIPTION
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
Features
REV. 1.2.2
The XR17D1541 (D154) is a quad PCI Bus Universal Asynchronous Receiver and Transmitter (UART) with same package and pin-out as the Exar XR17C158, XR17D158 and XR17C154. The device is designed to meet today’s 32-bit PCI Bus and high bandwidth requirement in munication systems. The global interrupt source register provides a plete interrupt status indication for all 4 channels to speed up interrupt parsing. Each UART is independently controlled and has its own 16C550 patible 5G register set, transmit and receive FIFOs of 64 bytes, fully programmable transmit and receive...