Uart communication of telemetry and debugging data using optical signals

Abstract

This application is directed to communicating telemetry and debugging data of a memory system using optical signals. An enclosed memory device has an optical indicator and receives a data request. In response to the data request, the enclosed memory device obtains internal activity data stored in the memory device, encodes the internal activity data into an electrical signal, and drives the optical indicator with the electrical signal to generate a visible light signal carrying the internal activity data. In some embodiments, the enclosed memory device includes a solid-state drive. In some embodiments, the internal activity data includes telemetry data stored by the enclosed memory device while the memory device is processing a sequence of memory access requests including at least one of a read request and a write request.