• Tracks angular position of engine crankshaft having a trigger pattern of N evenly spaced teeth with a separate single reference tooth per rotation (common to optical rotary encoders).
• Tracks 360 degrees (720 degrees if cam-mounted)

• Parameterized angular resolution by powers of 2
• Maximum engine speed limited only by clock input frequency
• Achieves engine sync on first detected reference tooth after a specified crank tooth count
• Capable of adjusting engine position by 360 degrees upon request
• Optionally remains synchronized at loss of reference tooth
• Interrupt-style flags for no reference tooth and missed crank tooth (in case of false or missing crank teeth)
• Supervises compatible engine synchronous output cores (fuel, spark, etc)
• Provides the following output information to CPU and supervised cores:
• Current position
• Crank tooth period (Actual)
• Crank tooth count
• Current tooth period timer value
• Crank tooth one-shot
• Engine stalled signal
• Sync stopped signal
• Error flags

Notes:

• Drivven is a member of the Xilinx-sponsored SignOnce IP Common License Consortium.  Please refer to these standard license agreement documents for details.
  • SignOnce IP Project License Form
  • SignOnce IP Site License Form
• Project licenses allow the netlist or source to be used for a single project.
• Site licenses allow the netlist or source to be used for unlimited number of projects.
• Upon request, Drivven will provide an evaluation netlist which contains a 5-minute time-bomb. 
• ModelSim test fixtures are available for simulation evaluation.