High Speed I/O
Sync Pulse Mode Table
Definition:CPR most commonly stands for Counts per Revolution, and refers to the number of quadrature
decoded states that exist between the two outputs A and B. With both outputs A and B switching between high and
low, there exists 2 bits of information represented as 4 distinct states.
Sync Pulse Mode Table
Mode Direction A (HSC1) B (HSC2) Marker (HSC3) Reset Value
Async, Reset on rising edge Rising 0
Async, Reset on falling edge Falling 0
Async, Reset on both edge Both 0
High, Reset on 1 rising Clockwise Rising High 0
“ Counter Falling High CPR - 1
Low, Reset on 1 rising Clockwise Rising Low 0
“ Counter Falling Low CPR - 1
High, Reset on 1 falling Clockwise Rising High CPR - 1
“ Counter Falling High 0
Low, Reset on 1 falling Clockwise Rising Low CPR - 1
“ Counter Falling Low 0
High, Reset on 2 rising Clockwise Rising High 0
“ Counter Falling High CPR - 1
Low, Reset on 2 rising Clockwise Rising Low 0
“ Counter Falling Low CPR - 1
High, Reset on 2 falling Clockwise Rising High CPR - 1
“ Counter Falling High 0
Low, Reset on 2 falling Clockwise Rising Low CPR - 1
“ Counter Falling Low 0
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