Instruction manual

Counters
98
890USE18300 September 2003
Wrap-arounds If an up-counter increments up to 65 535 and does not receive a reset input, it will
wrap to 0 and continue to increment from there until it is reset. At reset, the counter
will return to the preset value and start a new incremental up-count.
If a down-counter decrements down to 0 and does not receive a reset input, it will
wrap to 65 535 and continue to decrement from there until it is reset. At reset, the
counter will return to the preset value and start a new incremental down-count.
0
1
65 533 65 535
inputs
0
1
65 534
65 532
65 533
65 534
65 535
up-counter
outputs
0
reset
0
1
1
2
inputs
0
1
65 534
2
1
0
65 535
down-counter
outputs
reset
0
1
65 534
1 65 535
0
3