XC2000 datasheet(63/729 Pages) INFINEON

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XC2000 Derivatives

Peripheral Units (Vol. 2 of 2)

The General Purpose Timer Units

Preliminary

User’s Manual

14-45

V1.0, 2007-06

GPT_X7, V2.0

Timer T5 in Gated Timer Mode

Gated timer mode for the auxiliary timer T5 is selected by setting bitfield T5M in register

T5CON to 010

B or 011B. Bit T5M.0 (T5CON.3) selects the active level of the gate input.

Note: A transition of the gate signal at line T5IN does not cause an interrupt request.

Figure 14-26 Block Diagram of Auxiliary Timer T5 in Gated Timer Mode

Note: There is no output toggle latch for T5.

Start/stop of the auxiliary timer can be controlled locally or remotely.

Timer T5 in Counter Mode

Counter mode for auxiliary timer T5 is selected by setting bitfield T5M in register T5CON

to 001

B. In counter mode, the auxiliary timer can be clocked either by a transition at its

external input line T5IN, or by a transition of timer T6’s toggle latch T6OTL. The event

causing an increment or decrement of a timer can be a positive, a negative, or both a

positive and a negative transition at either the respective input pin or at the toggle latch.

Bitfield T5I in control register T5CON selects the triggering transition (see Table 14-12).

Prescaler

Gate

Ctrl.

Auxiliary

Timer T5

BPS2

T5I

T5IN

GPT

Count

T5IRQ

MCB05407_X4

MUX

T5RC

T5R

T6R

Clear

Up/Down

MUX

T5EUD

T5UD

T5UDE

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