Products -> RS232 / RS422 / RS485

RS232 / RS422 / RS485

For Multifunction Embedded Boards, this sophisticated high-speed communications module supports intelligent, full duplex communications that can be individually software configured for either RS-232C, RS-422, or RS-485 Synchronous or Asynchronous Communication. The architecture avoids latency problems because all data transfer is done in hardware and not in software. Any incoming data, no matter how many RS-232C, RS-422, or RS-485 Synchronous or Asynchronous channels are active, in whatever mode, can be immediately extracted. A BREAK sequence capability is also incorporated. Bus Data is transferred within 300 ns. FPGA design simplifies programming and usage.

Features:

An Internal Loop Back Self Test is performed when power is applied, and results are stored in registers. Each channel can be programmed into a Loop Back mode that internally wraps the transmitter around the receiver without the need of external wiring.
An additional asynchronous mode to support “Immediate Transmit” operation results in Serial Data Transmit Enhancement. Each channel has its own 32 Kbyte Transmit and Receive buffer.
A Receiver Enable/Disable function allows the user to turn selected receivers ON/OFF.
This serial card can operate in an Interrupt Driven Environment to provide notification of all events to the system. When a flow control mode is selected, the serial card does the operation automatically with minimal system intervention.
Multi-Drop Link Mode. The transmitter and receivers of up to 32 cards can be tied together in either Half or Full Duplex mode.

RS-232/422/485(Module P8) - Four High Speed RS-232, RS-422, RS-485

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