Offloaded intra-system synchronization

A host device, comprising:

• an oscillator;
• a counter to be driven by the oscillator and provide a host device counter value;
• a host memory to store host device clock translation parameters providing a translation between the host device counter value and a host device clock time;
• a data communication bus root port to:
• receive a peripheral device counter value from a peripheral device via a data communication bus;
• read peripheral device clock translation parameters from the host memory, the peripheral device clock translation parameters providing a translation between the peripheral device counter value and a peripheral device clock time;
• read the host device clock translation parameters from the host memory;
• compute a clock correction as a function of a difference between the host device clock time and the peripheral clock time, based on the host device counter value, the host device clock translation parameters, the peripheral device counter value, and the peripheral device clock translation parameters;
• and
• correct the host device clock translation parameters or the peripheral device clock translation parameters based on the clock correction.

A method, comprising:

• driving a counter by an oscillator;
• providing, by the counter, a peripheral device counter value;
• receiving a host device counter value from a host device;
• reading host device clock translation parameters from a host memory of the host device, the host device clock translation parameters providing a translation between the host device counter value and a host device clock time;
• reading peripheral device clock translation parameters, the peripheral device clock translation parameters providing a translation between the peripheral device counter value and a peripheral device clock time;
• reading the peripheral device counter value;
• computing a clock correction as a function of a difference between the host device clock time and the peripheral clock time, based on the host device counter value, the host device clock translation parameters, the peripheral device counter value, and the peripheral device clock translation parameters;
• and
• correcting the host device clock translation parameters or the peripheral device clock translation parameters based on the clock correction.

A method, comprising:

• driving a counter by an oscillator;
• providing, by the counter, a host device counter value;
• storing host device clock translation parameters providing a translation between the host device counter value and a host device clock time;
• receiving, by a data communication bus root port, a peripheral device counter value from a peripheral device via a data communication bus;
• reading, by the data communication bus root port, peripheral device clock translation parameters from the host memory, the peripheral device clock translation parameters providing a translation between the peripheral device counter value and a peripheral device clock time;
• reading, by the data communication bus root port, the host device clock translation parameters from the host memory;
• computing, by the data communication bus root port, a clock correction as a function of a difference between the host device clock time and the peripheral clock time, based on the host device counter value, the host device clock translation parameters, the peripheral device counter value, and the peripheral device clock translation parameters;
• and
• correcting, by the data communication bus root port, the host device clock translation parameters or the peripheral device clock translation parameters based on the clock correction.