Rainbow-electronics ATAR862-8 User Manual download pdf (Page 57)

ATAR862-8

4589B–4BMCU–02/03

Figure 53. Counter Reset with Each Compare Match

Figure 54. Counter Reset with Compare Register 2 and Toggle with Start

Figure 55. Single Action of Compare Register 1

Timer 3 – Mode 2:

Timer/Counter, External

Trigger Restart and External

Capture (with T3I Input)

The counter is driven by an internal clock source. After starting with T3R, the first edge

from the external input T3I starts the counter. The following edges at T3I load the cur-

rent counter value into the capture register, reset the counter and restart it. The edge

can be selected by the programmable edge decoder of the timer input stage. If single-

action mode is activated for one or both compare registers the trigger signal restarts the

single action.

0000123 51234 00123 12

T3R

Counter 3

CM31

INT5

T3O

CM32

4000123 567 40123 56

T3R

Counter 3

CM31

INT5

T3O

Toggle

by start

T3O

CL3

CM32

0 012345678910012

Counter 3

CM31

CM32

T3O

01201201201201201201201201

Toggle by start

T3R

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 105 106

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Rainbow-electronics ATAR862-8 User Manual Page 57