Universal Asynchronous Receiver / Transmitter

Overview

The macro M16550, implements a synchronous universal asynchronous receiver/transmitter, which provides an interface between a microprocessor and a serial communication channel.
This macro can be customized according to specific needs (application-specific requirement). Any other pre-designed functions can be integrated into the FPGA. FPGA density and I/O requirements can be defined according to customer specification.

Key Features

  • Single-chip synchronous UART
  • Functionally based on the National Semiconductor Corporation NS16550 device
  • Designed to be included in high-speed and high-performance applications
  • System clock up to 150 MHz
  • CPU independent interface
  • Complete asynchronous communication protocol including :
    • 5,6,7 or 8-bit data transmission
    • Even/Odd or no parity bit generation and detection
    • Start and Stop bit generation and detection
    • Line break generation and detection
    • Receiver Overrun and framing detection
  • Up to 1M baud (system frequency dependent)
  • 1 to 65535 divisor generates 16X clock
  • Buffered transmit and receive registers
  • Transmitter and receiver are buffered with 16 Byte FIFO, plus 3 error bits per data byte on receiver
  • Polled or interrupt mode
  • Loopback mode

Deliverables

  • VHDL Source code
  • VHDL Test Bench for behavioural and gate level simulation.
  • Data Sheet and Reference Guide
  • User’s guide : Simulation, Synthesis and Place and Route procedures.
  • Constraint File

Technical Specifications

Availability
Now
×
Semiconductor IP