The Advanced eXtensible Interface (AXI) Universal Asynchronous Receiver Transmitter (UART) 16550 connects to the AMBA® (Advance Microcontroller Bus Architecture) AXI and provides the controller interface for asynchronous serial data transfer. This soft IP core is designed to connect via an AXI4-Lite interface.

Key features are:
 •  AXI interface is based on AXI4-Lite specification
 •  Hardware and software register compatible with all standard 16450 and 16550 UARTs
 •  Supports default core configuration for 9600 baud, 8 bits data length, 1 stop bit and no parity
 •  Implements all standard serial interface protocols


Documentation
The COTS version v1.01a is the baseline from which the DO-254 AXI Universal Asynchronous Receiver Transmitter (UART) 16550 1.00a comes from. Logicircuit applies the DO-254 lifecycle to this COTS version. As a result of this DO-254 process, the source code will be modified with the goal of achieving 100% code coverage, and the resulting code will be named DO-254 AXI Universal Asynchronous Receiver Transmitter (UART) 16550 1.00a. Below are links to the Xilinx® Product Data for the version that was used as the basis, and the Logicircuit Data Sheet of the resulting DO-254 product.

Link to the Xilinx® Product Specification
 
Link to the Logicircuit Data Sheet:
DO-254 AXI Universal Asynchronous Receiver Transmitter (UART) 16550 1.00a Data Sheet


Device Family Support
Xilinx® Artix™-7
Xilinx® Kintex™-7
Xilinx® Virtex™-7
Xilinx® Zynq™-7000
Xilinx® Spartan®-6