Patent ID: 8307235

Claim:
A method for synchronizing multiple subsystems with respect to each other, the method comprising: phase aligning a first master clock signal of a first subsystem to a second master clock signal of a second subsystem; phase aligning a first slave clock signal of the first subsystem to the first master clock signal, and phase aligning a second slave clock signal of the second subsystem to the second master clock signal; asserting a first trigger pulse in the first subsystem and a second trigger pulse in the second subsystem at a same first point in time, subsequent to said phase aligning the first master clock signal and said phase aligning the second master clock signal; receiving the first trigger pulse, and in response to receiving the first trigger pulse: performing a first function using the first master clock signal; and performing a second function using the first slave clock signal; and receiving the second trigger pulse, and in response to receiving the second trigger pulse: performing a third function using the second master clock signal; and performing a fourth function using the second slave clock signal; wherein said performing the first, second, third, and fourth functions begin at a same second point in time.