MaxLinear XR17V352IB113-F

The XR17V3521 is a single chip 2-channel PCI Express (PCIe) UART (Universal Asynchronous Receiver and Transmitter), optimized for higher performance and lower power. The XR17V352 serves as a single lane PCIe bridge to 2 independent enhanced 16550 compatible UARTs. The XR17V352 is compliant to PCIe 2.0 Gen 1 (2.5 GT/s). In addition to the UART channels, the XR17V352 has 16 multi-purpose I/Os (MPIOs), a 16-bit general purpose counter/timer and a global interrupt status register to optimize interrupt servicing. Each UART of the XR17V352 has many enhanced features such as the 256-bytes TX and RX FIFOs, programmable Fractional Baud Rate Generator, Automatic Hardware or Software Flow Control, Auto RS-485 Half-Duplex Direction Control, programmable TX and RX FIFO Trigger Levels, TX and RX FIFO Level Counters, infrared mode, and data rates up to 31.25 Mbps. The XR17V352 is available in a 113-pin FPBGA package (9×9 mm).

• Single 3.3V power supply
• Internal buck regulator for 1.2V core
• PCIe 2.0 Gen 1 compliant
• x1 Link, dual simplex, 2.5 Gbps in each direction
• EEPROM interface for configuration
• Data read/write 32-bit operation
• Global interrupt status register for both UARTs
• Up to 31.25 Mbps serial data rate
• 16 multi-purpose inputs/outputs (MPIOs)
• 16-bit general purpose timer/counter
• Sleep mode with wake-up Indicator
• Two independent UART channels controlled with
  • 16550 compatible register Set
  • 256-byte TX and RX FIFOs
  • Programmable TX and RX Trigger Levels
  • TX/RX FIFO Level Counters
  • Fractional baud rate generator
  • Automatic RTS/CTS or DTR/DSR hardware flow control with programmable hysteresis
  • Automatic Xon/Xoff software flow control
  • RS-485 half duplex direction control output with programmable turn-around delay
  • Multi-drop with Auto Address Detection
  • Infrared (IrDA 1.1) data encoder/decoder
• Software compatible to XR17C15x, XR17D15x, XR17V25x PCI UARTs

• Next generation Point-of-Sale Systems
• Remote Access Servers
• Storage Network Management
• Factory Automation and Process Control
• Multi-port RS-232/RS-422/RS-485 Cards