DO-254 AXI Timebase Watchdog Timer 1.00a

The Advanced eXtensible Lite (AXI) Timebase Watchdog Timer is a 32-bit peripheral that provides a 32-bit free-running timebase and watchdog timer.

Key features are:

  • Connects as a 32-bit slave on a AXI4-Lite Interface
  • Watchdog timer (WDT) with selectable timeout period and interrupt
  • Configurable WDT enable: enable-once or enable disable
  • One 32-bit free-running timebase counter with rollover interrupt-Dual control register



The COTS version v1.01.a is the baseline from which the DO-254 AXI Timebase Watchdog Timer 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 Timebase Watchdog Timer 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 Timebase Watchdog Timer 1.00a Data Sheet


Device Family Support

Xilinx® Artix™-7

Xilinx® Kintex™-7

Xilinx® Virtex™-7

Xilinx® Zynq™-7000

Xilinx® Spartan®-6