9-27

FIGURE 3. WINK WAVEFORMS IN TIMING MODES

FIGURE 4. START/STOP INPUT DEBOUNCE FILTERING IN COUNTING MODES

FIGURE 5. WINK WAVEFORMS IN COUNTING MODES

WINK GOES IN PHASE

WINK GOES OUT PHASE

16

17

1

BP

W

S/S

ON

SEGMENTS

OFF

SEGMENTS

TIMING ACTIVE

40Hz < f < 50Hz

COUNT WITHOUT DEBOUNCE

ONE COUNT WITH DEBOUNCE

COUNT WITHOUT DEBOUNCE

UNKNOWN RESULTS WITH DEBOUNCE

COUNT WITH OR WITHOUT DEBOUNCE

S/S VALID

S/S INVALID

S/S VALID

50Hz

≤ f ≤ 120kHz

5

15

16

17

32

1

2

BP

WINK GOES IN PHASE

WINK GOES OUT PHASE

W

S/S

ICM7249