PCI-E XR17V358 8S RS422/RS485 Convertor card

XR17V358

HIGH PERFORMANCE OCTAL PCI EXPRESS UART

Overview

The XR17V358 (V358) is a single chip 8-channel PCI Express (PCIe) UART (Universal Asynchronous Receiver and Transmitter), optimized for higher performance and lower power. The V354 serves as a single lane PCIe bridge to 8 indepedent enhanced 16550 compatible UARTs. The V358 is compliant to PCIe 2.0 Gen 1 (2.5GT/s). Each UART of the V358 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 25Mbps, auto RS485 half-duplex direction control, with maximum 1.2kM transmission distance, In addition to the UART channels, the V358 has 16 multi-purpose I/Os (MPIOs), a 16-bit general purpose counter/timer and a global interrupt status register to optimize interrupt servicing.

KEY Features

• Single 3.3V power supply

• Internal buck regulator for 1.2V core

• PCIe 2.0 Gen 1 compliant

• x1 Link, dual simplex, 2.5Gbps in each direction

• Expansion bus interface

• EEPROM interface for configuration

• Data read/write burst operation

• Global interrupt status register for all eight UARTs

• Up to 25 Mbps serial data rate

• 16 multi-purpose inputs/outputs (MPIOs)

• 16-bit general purpose timer/counter

• Sleep mode with wake-up Indicator

• Eight 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

- RS485 Signal: T+(A), T-(B), GND

- RS422 Signal: T+, T-, R+, R-, GND

- 500W surge protection, 20KV ESD protection for all serial ports

- Working mode: asynchronous working, point-to point or point-to-multipoint 2wires(half duplex), 4wires(full duplex)

- Maximum up to 1.2KM transmission distance in RS485 / RS422 mode (300bps-921600bps)

- Transmission media: twisted-pair cable or shielded cable

- Interface protection: 500W surge protection, 20KV ESD protection for all serial ports,

  2500Vrms magnetic coupling isolation voltage protection. high common-mode

  transient immunity: 25KV/μs, 1000V DC-DC power supply isolation module protection.

- UART interface support for 7 or 8 data bits, 1 or 2 stop bits and Even / Odd / mark / space/none

- Flow control: none, hardware and Xon/Xoff

- Sleep mode with wake –up indicator

- Load capability: support point-to-multiport transmission, Each converter can connect 32 RS422 or RS-485 interface equipment