Kontron PB-TIM2 Manuel d'utilisateur télécharger pdf (Page 12)

Chapter 2 Functional Description PB-TIM2 User’s Manual

2.1 Normal Timer Mode

With reference to the single channel block diagram of figure 2.1.0 below, the input line (A) is used as a trigger, input

line (B) functions as a gate that disables the timer when active and the third input (C) may be used as a clear input. An

additional clear input is common to all three timers. The output line acts as either non-zero detection or as a toggle

function on zero detection.

Figure 2.1.0 Block diagram of a single channel

Last Value

8-bit

Prescaler

16-bit

Timer Register

16-bit Compare /

Preset Register

16-bit

Comparator

Toggle

Logic

OUTPUT

Common

Clear

Compare Value

16 MHz

Sys Clk

Load

Count Enable

Reset

Q0 - Q15

D0 - D15

Zero

Detector

Zero

Logic

16-bit Last

Value Register

Logic

Clock

Match IRQ

Divide by

4 Logic

4 MHz

Timer Clk

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 35 36

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Kontron PB-TIM2 Manuel d'utilisateur Page 12