Measurement of timing skew between two digital signals
AssigneeSTMicroelectronics Pvt. Ltd.
InventorBalwant Singh
Life of this patent
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Abstract
A system for measuring a timing skew between two digital signals may include a clock generator for generating a time measurement clock, and a pulse-to-digital converter for converting the timing skew into an equivalent digital coded value after correcting for internal logic delays. The system may further include a register bank for storing the digital coded values, and a controller for generating control signals and sequences for controlling the operation of the pulse-to-digital converter and the register bank.
Claims14
A system for measurement of timing skew between two digital signals comprising:
- clock generation means for generating time measurement clock,
- pulse-to-digital-converter means for converting the timing skew into an equivalent digital coded value after correcting for internal logic delays,
- register bank means for storing the said digital coded values, and
- controller means for generating control signals and sequences for controlling the operation of said pulse-to-digital converter means and said register bank means.
A method for measuring the timing skew between two digital signals comprising the steps of:
- generating a timing clock,
- converting said timing skew into a pulse using a conversion circuit,
- counting said clock pulses during the active state of said pulse,
- determining internal delays introduced by said conversion to said pulse,
- correcting the obtained count value for the timing delays introduced during conversion to said pulse,
- converting the corrected count value into a desired digital code, and
- storing said digital code value.
Dependencies are inferred from the claim text.