MIL‑STD‑1553 is a dual-redundant serial data bus standard widely used for avionics, aerospace, defence and space systems. Originally standardized in the 1970s, it defines how a Bus Controller (BC), multiple Remote Terminals (RT), and optionally a Monitor Terminal (MT) communicate on a shared bus at ~1 Mbps. The standard ensures robust, deterministic, redundant communication essential in safety or mission-critical systems such as aircraft subsystems, satellites, weapon systems, etc. Over decades, implementations moved from discrete transceivers + protocol logic, through ASICs / mixed-signal ICs, to modern implementations using FPGA IP cores.
iWave’s MIL-STD-1553B IP Core: What is It?
- iWave offers a MIL-STD-1553B IP Core that can be configured to operate as Bus Controller (BC), Remote Terminal (RT) or Bus Monitor (BM/MT) — depending on what the user needs.
- That means if you embed this core in an FPGA, your design can be a controller of the bus, a terminal (responding to commands), or simply monitor traffic on the bus.
- This flexibility is important, depending on the system, you may need only an RT, or only a BC, or both. Having a configurable core avoids needing multiple different ICs.
iWave’s MIL-STD-1553B IP Core features:
General Features:
- Compliant with MIL-STD-1553B specification
- All transfer types supported, including RT-to-RT and broadcast transfers
- Dual-redundant bus support with BC, RT and BM Modes
- 1 Megabit per sec (Mbps) transfer rate
- AXI4 lite compatibility for user interface
Bus Controller Features:
- Communication via redundant bus in case of main bus failure
- Re-transmission of erroneous message over same or alternate bus
- Programmable Inter-Message Gap Time
- Message Format Check
Remote Terminal Features:
- Fully compliant with specs
- Having programmable Remote terminal address.
- Receiving broadcast messages traveling on the bus
Bus Monitor Features:
- Fully compliant with specs
- Monitors all frames on bus and logs it to memory
Why Using a 1553B IP Core Is Attractive?
Especially in the context of modern embedded systems / FPGA-based designs, a 1553B IP core brings several advantages many of which have been recognized industry-wide.
- Reduced board space & integration complexity Instead of a dedicated 1553B IC + discrete transceiver + external components, you integrate the core into an FPGA you already use, along with a minimal analog transceiver for the physical link. This cuts PCB area and reduces BOM.
- Cost savings and supply-chain flexibility Once you license the IP core, you only need a standard FPGA and transceiver; you avoid vendor lock-in and IC obsolescence issues.
- Flexibility and upgradeability Since the core reside in FPGA logic, you can adapt it: add features, change configuration, port to a different FPGA family, or even fix bugs — without redesigning the hardware. Also the IP core is generically implemented without any vendor specific primitives, enabling it to be targeted and deployed across FPGAs from all major vendors.
- Integration with other logic/IP on same FPGA For complex systems (radar, avionics, data acquisition, communication, etc.), you can combine 1553B protocol logic with your other logic (controllers, custom logic, interfaces) on the same chip — simplifies design, reduces part count.
- Scalability — You can instantiate multiple 1553B channels (BC, RT, BM) as needed, depending on design requirements.
Why iWave’s MIL-STD-1553B IP Core Matters?
iWave’s MIL-STD-1553B IP core represents a modern, flexible, efficient, and cost-effective way to implement the trusted MIL-STD-1553B bus standard — leveraging FPGA logic instead of fixed ICs. For companies like iWave Global with FPGA/IP-core expertise and FPGA-based SoMs or ODM ambitions, this approach offers the ability to integrate legacy-standard bus capability into advanced, custom hardware — saving board space, reducing BOM, improving flexibility, and lowering risk of obsolescence.
In addition, iWave supports customers by providing the necessary certification artifacts required for DO-254 compliance. This significantly simplifies the certification process and reduces development risk for safety-critical programs. By offering both the IP core and the associated compliance deliverables, iWave ensures a complete and streamlined solution which enables customers to focus on system integration and deployment with confidence.
For more information, please visit www.iwave-global.com or reach out to us at mktg@iwave-global.com
