M-7084 User Manual, Rev. A1.3 7PH-013-A13
19
Quadrature Counting
When InA0 is used as the A signal and InB0 is used as the B
signal, the counter will be increased by one when the InA0
phase leads by 90 degrees to InB0 and the counter will be
decreased by one when the InA0 phase lags by 90 degrees to
InB0.