PCIe x1 XR17V354 4-port RS422/485 Serial Adapter Card with 16550 UART

The XR17V354 (V354) is a single chip 4-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 4 indepedent enhanced 16550 compatible UARTs. The V354 is compliant to PCIe 2.0 Gen 1 (2.5GT/s).

In addition to the UART channels, the V354 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 V354 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.

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 four 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
• 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

Specifications

• Hardware
• Communication controller: 16C550 UART Compatible register Set
• Bus: PCIe 2.0 Gen 1 compliant , X1 Link, dual simplex, 2.5Gbps in each direction
• Connector: DB44 Female
• Serial Interface
• Number of ports: 4 ports
• Serial Standard: RS-422 (Point to Point mode), RS-485 (2 Wire RS-485 mode), 4 Wire RS-485 (Multi-Drop RS-422 mode)
• IRQ and I/O Address: Assigned by System
• Serial Line Protection
• ESD Protection: 15KV ESD Protection for all signals
• Surge Protection: 600W Surge Protection for RS-422/485 signals
• Performance
• Baud rate: up to 921.6 Kbps
• FIFOs: 256 byte
• Serial Communication Parameters
• Data Bits: 5, 6, 7, 8
• Stop Bits: 1, 1.5, 2
• Parity: None, Even, Odd, Space, Mark
• Serial Signals
• RS-422: TxD+, TxD- RxD+, RxD-, GND
• 2 Wire RS-485: Data+, Data-, GND
• 4 Wire RS-485: TxD+, TxD-, RxD+, RxD-, GND
• System Requirements
• Windows Server 2003, 2008, 2012, Windows XP, Vista, Win 7, Win 8
• Linux 2.6.27, 2.6.31, 2.6.32, 3.x.x and newer
• PCI Express-enabled system with an available PCI Express slot
• Physical Characteristics
• Bracket: Standard and Low Profile Bracket
• Bracket Space: 1
• Operating Temperature:-40 ~ 85°C

Package Contents

• 1 x PCIE 17V354 RS485/422 Serial Card (1 to 4 Port Cable Included)
• 1 x Driver CD
• 1 x User Manual
• 1 x Low Profile Bracket