Pipeline AER arbitration with event aging

Description

We present a simple circuit to handle communication between cells of neuromorphic arrays. It allows cells to operate continuously without waiting for acknowledgement signals back from the AER (Address Event Representation) arbitration circuitry. The module also implements aging of cell petitions i.e., old petitions to access to the AER bus are automatically discarded to give priority to the more recent ones and alleviate the bus congestion. The new arbitration scheme has been implemented and tested. A particular application scenario with an image sensor with spiking pixels that sense light continuously is explained. The sensing errors per event due to discontinued pixel operation can be minimized a factor 8.1. Experimental data obtained with real visual scenes are provided.

Abstract

Universidad de Cádiz PR2016-072

Abstract

Ministerio de Economía y Competitividad TEC2015-66878- C3-1-R

Abstract

Junta de Andalucía TIC 2012-2338

Abstract

Office of Naval Research (USA) N000141410355

Additional details