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PRELIMINARY
JULY 2009
XR17V352
REV. P1.0.1
HIGH PERFORMANCE DUAL PCI EXPRESS UART
GENERAL DESCRIPTION
The XR17V3521 (V352) is a single chip 2-channel PCI Express (PCIe) UART (Universal Asynchronous Receiver and Transmitter), optimized for higher performance and lower power. The V352 serves as a single lane PCIe bridge to 2 indepedent enhanced 16550 compatible UARTs. The V352 is compliant to PCIe 2.0 Gen 1 (2.5GT/s). In addition to the UART channels, the V352 has 16 multi-purpose I/Os (MPIOs), a 16-bit general purpose counter/timer and a global interrupt status register to optimize interrupt servicing.