TLF9547 – 8

FIGURE 4 MODE 6

j

With XTR HIGH the rising edge of CP loads data from the latches to the counter

k

With XTR LOW the rising edge of CP begins the count and Q goes HIGH

l

When the count reaches zero Q goes LOW and Q2 toggles state Bringing XTR HIGH before count reaches zero will reload the counter but not affect Q

Notes

TLF9547 – 9

FIGURE 5 MODE 7

j

With XTR HIGH the rising edge of CP loads data from the latches to the counter

k

On the falling edge of XTR the rising edge of CP begins count-down

l

When count reaches zero Q goes HIGH for one period of CP and Q2 toggles on the Q rising edge

m

On the rising edge of CP on which Q goes LOW the counters are reloaded

n

Count-down begins again

5