Ausgelöste Abfrage in Verketteten Vorrichtungen, System, Vorrichtungen und Verfahren

Details

Veröffentlichungs-Nr.

EP4745791

Anmeldetag

15. November 2024

Veröffentlichung

20. Mai 2026

Rechtsraum

EP

Abstract

A digital communication system (1) comprises a master device (2) and a plurality of slave devices (4). The master and slave devices are, in operation, communicatively coupled over a communication bus (5) and also coupled together in a daisy-chain configuration using a separate line. A daisy-chain input (DC_IN) of a subsequent device is coupled to a daisy-chain output (DC_OUT) of a previous device in the daisy-chain configuration. Any slave device (4) propagates an interrupt value at their daisy-chain input to their daisy-chain output. In a case of a local interrupt event (99), a slave device (4) changes its daisy-chain output from an operating value to the interrupt value. The master device, responsive to detecting a change of its daisy-chain input (FB_IN) into the interrupt value, triggers a sequential polling of all the slave devices, from the last one to the first one, for feedback collection using the communication bus.

Anmelder

Firma

STMicroelectronics International N.V.

Land

🇨🇭 Schweiz