Abstract: Systems and methods for unifying multiple audio bus interfaces in an audio system are disclosed herein. In one aspect, an integrated circuit (IC) comprises a primary slave audio device comprising a first control circuit, and a dependent slave audio device comprising a second control circuit. The primary slave audio device and the dependent slave audio device are communicatively coupled via a slave status link, and the first control circuit and the second control circuit each configured to receive, from a master audio device, a mode instruction that indicates operation in one of a detach mode and a unify mode. The second control circuit is configured to, while operating in the detach mode, transmit a slave status to the master audio device via a second control lane, and, while operating in the unify mode, transmit the slave status to the primary slave audio device via the slave status link.

Abstract: Systems and methods for unifying multiple audio bus interfaces in an audio system are disclosed herein. In one aspect, an integrated circuit (IC) comprises a primary slave audio device comprising a first control circuit, and a dependent slave audio device comprising a second control circuit. The primary slave audio device and the dependent slave audio device are communicatively coupled via a slave status link, and the first control circuit and the second control circuit each configured to receive, from a master audio device, a mode instruction that indicates operation in one of a detach mode and a unify mode. The second control circuit is configured to, while operating in the detach mode, transmit a slave status to the master audio device via a second control lane, and, while operating in the unify mode, transmit the slave status to the primary slave audio device via the slave status link.

Abstract: Systems and methods for essentially continuous audio flow for Internet of Things (IoT) devices during power mode transitions contemplate an audio bus, such as a SOUNDWIRE audio bus, to maintain an audio stream during a clock transition without having to tear down the audio stream as a new clock becomes active on the audio bus. By preserving the audio stream during such a transition, gaps in the audio are avoided resulting in better performance and end user experience.

Abstract: Systems and methods for essentially continuous audio flow for Internet of Things (IoT) devices during power mode transitions contemplate an audio bus, such as a SOUNDWIRE audio bus, to maintain an audio stream during a clock transition without having to tear down the audio stream as a new clock becomes active on the audio bus. By preserving the audio stream during such a transition, gaps in the audio are avoided resulting in better performance and end user experience.

Abstract: Full-duplex memory access systems and methods for improved quality of service (QoS) are disclosed. In one aspect, a primary bus owner will evaluate an output from a secondary bus owner when the primary bus owner takes control of the bus to determine if the secondary bus owner has data to send to the primary bus owner and/or is in the midst of a bulk data transfer. If the evaluation determines that there is still data to be transferred, the primary bus owner may refrain from draining an internal register unless a full word is present in the register. By reducing memory access for a partial word in the register, QoS may be improved.