Presentation
Congestion Free, Power Domain Aware Signal Multiplexing
DescriptionAutomotive SoCs with body control applications require a current profile supported by the various power modes of the device. For body and gateway applications, power gating is a very commonly used technique to achieve the current profile.
Hence the MCU transitions to and from standby mode at regular intervals. Driven from ultra-low power consumption requirement of the MCU in the standby mode, not all the IOs remain alive in standby mode, apart from the ones which would be used in the standby application.
Hence there is a need to configure the pad state of the device in standby mode based on the low power application requirements.
The conventional signal multiplexing approaches suffer from congestion and routing issues since the IOs which have any always-on domain functionality reside in always on domain, irrespective of other functions multiplexed on that IO.
The proposed signal multiplexing scheme resolves this by controlling the signal multiplexing in a modular fashion, thereby providing a congestion free, power domain aware signal multiplexing which reduces the buffering and congestion in the signal routing. It also enables the software to govern the state of the pads in the standby mode and providing flexibility to achieve the lowest current profile driven by the application by controlling functionality at per-pad basis.
Hence the MCU transitions to and from standby mode at regular intervals. Driven from ultra-low power consumption requirement of the MCU in the standby mode, not all the IOs remain alive in standby mode, apart from the ones which would be used in the standby application.
Hence there is a need to configure the pad state of the device in standby mode based on the low power application requirements.
The conventional signal multiplexing approaches suffer from congestion and routing issues since the IOs which have any always-on domain functionality reside in always on domain, irrespective of other functions multiplexed on that IO.
The proposed signal multiplexing scheme resolves this by controlling the signal multiplexing in a modular fashion, thereby providing a congestion free, power domain aware signal multiplexing which reduces the buffering and congestion in the signal routing. It also enables the software to govern the state of the pads in the standby mode and providing flexibility to achieve the lowest current profile driven by the application by controlling functionality at per-pad basis.
Event Type
Engineering Poster
Networking
TimeMonday, June 235:00pm - 6:00pm PDT
LocationEngineering Posters, Level 2 Exhibit Hall