Patent ID: 10983552

Abstract:
Systems, methods, and apparatus for improving bus latency are described. Clock-cycle overhead associated with the transmission of trigger activation information may be reduced through the use of optimized datagram structures for register-configurable trigger activation mechanisms. A first mechanism defines a command code with a first Trigger-Activation datagram, and a second mechanism defines a command code with a second Trigger-Activation datagram that uses a 4-bit Magic-ID and eliminates 18 clock cycles from the conventional Extended Register Write datagram structure. A method performed at a device coupled to a serial bus includes generating a datagram that does not have an address field, populating a data payload of the datagram with trigger activation information directed to a plurality of slave devices coupled to a serial bus, and transmitting the datagram over the serial bus. Transmission of the datagram serves as a trigger that causes a configuration change in at least one slave device.