ATAM862 datasheet(62/110 Pages) ATMEL

62 / 110 page

4554E–4BMCU–05/06

ATAM862-3

23.2.3

Timer 3 – Mode 3: Timer/Counter, Internal Trigger Restart and Internal Capture (with TOG2)

The counter is driven by an internal or external (T3I) clock source. The output toggle signal of

Timer 2 resets the counter. The counter value before the reset is saved in the capture register. If

single-action mode is activated for one ore both compare registers, the trigger signal restarts the

single actions. This mode can be used for frequency measurements or as event counter with

time gate (see “Combination Mode 10: Frequency Measurement or Event Counter with Time

Gate” on page 91).

Figure 23-7. Event Counter with Time Gate

23.2.4

Timer 3 – Mode 4: Timer/Counter

The timer runs as timer/counter in mode 1, but its output T3O is used as output for the Timer 2

output signal.

23.2.5

Timer 3 – Mode 5: Timer/Counter, External Trigger Restart and External Capture (with T3I Input)

The Timer 3 runs as timer/counter in mode 2, but its output T3O is used as output for the Timer

2 output signal.

00 1 2 34567 8 9 10

Counter 3

TOG2

T3CP-

0 1

40 1

T3I

T3R

Capture value = 0

Capture value = 11

Capture

value = 4

ATAM862 Datasheet(PDF) 62 Page - ATMEL Corporation