Sensor interface architecture with queue overflow protection

A method, comprising:

• determining, by a controller in response to a system being in a disabled state, that a data packet received through a sensor link is a start packet of a frame, wherein the frame is converted to a set of packets comprising the start packet followed by one or more intermediate data packets and an end packet of the frame, and wherein the system comprises a queue enabler circuit coupled to the controller and configured to enable a sensor interface queue (SIFQ) to receive a set of data packets to be stored in a queue in the SIFQ;
• enabling the queue enabler circuit to allow the data packet to be sent to the queue of the SIFQ;
• and
• entering an active state to receive the one or more intermediate data packets of the frame through the sensor link.

A system, comprising:

• a sensor interface queue (SIFQ) coupled to a first sensor link and a second sensor link and comprising a first queue and a second queue, wherein the first queue is allocated to a first sensor source coupled to the SIFQ through the first sensor link to store a first set of data packets received through the first sensor link, and wherein the second queue is allocated to a second sensor source coupled to the SIFQ through the second sensor link to store a second set of data packets received through the second sensor link, and wherein the first set of data packets and the second set of data packets share a same data packet format;
• a first queue enabler circuit coupled to the first sensor link and configured to enable the SIFQ to receive the first set of data packets from the first sensor link;
• a second queue enabler circuit coupled to the second sensor link and configured to enable the SIFQ to receive the second set of data packets from the second sensor link;
• and
• a controller coupled to the SIFQ, the first queue enabler circuit, and the second queue enabler circuit, wherein the controller is configured to:
• detect an overflow in the first queue;
• disable, in response to the overflow, the first queue enabler circuit to stop receiving additional data packets from the first sensor link;
• and
• enter a disabled state for the system.