Performance evaluation of the ultra high-speed synchronous arbitration for transient pixels' events

Abstract

In this article, an ultra high-speed synchronous arbitration process for transient pixels' data is presented and evaluated. Enabling a high-precision timestamping, this system demonstrates its uniqueness for handling high peak rates and preserving the main advantage of the neuromorphic electronic systems, that is high and accurate temporal resolution of the pixels' events. By attaching a timestamp to the event at its occurrence instant, the synchronous arbitration concept provides accuracy better than 1 µs. Both synchronous and (state-of-the-art) asynchronous arbiters are implemented in a neuromorphic dual-line vision sensor chip in a standard 0.35 µm standard CMOS process. The performance analysis of the synchronous arbitration is provided and discussed for high-speed applications.