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MaxLinear XR17V352 / XR17V354 / XR17V358 PCIe UART

MaxLinear XR17V352, XR17V354, and XR17V358 single-chip, 2-, 4-, and 8-channel PCI Express (PCIe) UART series are optimized for high-performance and low power. The MaxLinear XR17V352 PCIe UART serves as a single-lane PCIe bridge to two independent enhanced 16550-compatible UARTs while the XR17V354 and XR17V358 serve as a single-lane PCIe to 4 and 8 independent enhanced 16550 compatible UARTs, respectively. These MaxLinear devices are compliant to PCIe 2.0 Gen 1 (2.5GT/s). The XR17V352, XR17V354, and XR17V358 PCIe UARTs have 16 multi-purpose I/Os, a 16-bit general purpose counter/timer, and a global interrupt status register to optimize interrupt servicing. Enhanced features of the XR17V352, XR17V354, and XR17V358 include 256-bytes TX and RX FIFOs, programmable Fractional Baud Rate Generator, Automatic Hardware or Software Flow Control, infrared mode, data rates up to 25Mbps, and more. These devices are designed for use in next-generation point-of-sale systems, remote access servers, storage network management, multi-port RS-232 / RS-422 / RS-485 cards, and factory automation and process control.

Features

  • 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

Applications

  • 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

Block Diagram

MaxLinear XR17V352 / XR17V354 / XR17V358 PCIe UART
Published: 2009-12-01 | Updated: 2022-03-11