Bitstream Efficiency of Field Programmable One-Hot Arrays

Abstract

Field Programmable One-Hot Arrays (FPOHAs) have simple cells which are suitable to implement control-rich algorithms, where one-hot encoding is preferred. We present the cell design for the FPOHA and describe a modified open-source one-hot tool, known as Verilog Implicit To One-hot (VITO), to synthesize one-hot designs into FPOHA configurations without global optimization. We compare the bitstream sizes for FPOHAs and FPGAs using artificial benchmarks. In theory, optimal FPOHA layouts could have bitstream sizes half that of FPGAs. The observed FPOHA sizes synthesized from VITO may not be optimal, but are still often more efficient than FPGA sizes.

Parallax-Docking and Reconfiguration of Field Programmable Robot Arrays Using an Intermittently-Powered One-Hot Controller

“…IV. Field Programmable One-Hot Arrays Rather than using conventional FPGAs to implement the reconfigurable logic on board the FPRA, we instead use a Field Programmable One-Hot Array (FPOHA), which is a novel reconfigurable logic type that encodes one-hot controllers efficiently [9]. -One-hot‖ means only one of the states' flip-flops contains a 1 (identifying the current state) in any cycle; the rest contain 0s.…”