System and method for configuring coordinated PWM generators

A circuit, including:

• a first PWM generator circuit, including:
• a first timer,
• a first program enable to enable loading of a first program register,
• a first trigger input to activate the first timer, and
• a first plurality of trigger outputs, and
• a second PWM generator circuit, including:
• a second timer,
• a second program enable input to enable loading of a second program register,
• a second trigger input to activate the second timer, and
• a second trigger input selector for selectively driving the second trigger input based on one of the first plurality of trigger outputs,
• a first memory access channel to load the first program register, and
• a second memory access channel to load the second program register.

A method including:

• in response to a first load enable signal received at a first PWM generator:
• loading a first configuration register with values defining:
• characteristics of a first electrical pulse to be generated, and
• a first trigger time, and
• determining a start time of the first electrical pulse, and
• in response to a first trigger signal on a first trigger input, enabling a first timer to begin counting,
• in response to the first timer counting to the first trigger time, generating a first trigger output signal on a first trigger output,
• in response to the first timer counting to the start time of the first electrical pulse, generating a first electrical pulse,
• selecting a second load enable input to a second PWM generator from a plurality of selectable inputs including the first trigger output, and
• in response to a second load enable input signal received at the second load enable input, loading a second configuration register of the second PWM generator with values defining characteristics of a second electrical pulse to be generated.