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C504

8-Bit Single-Chip Microcontroller

Infineon Technologies 

C504

The Compare Timers 1 and 2 are free running, processor clock coupled 16-bit / 10-bit

timers; each of which has a count rate with a maximum of fOSC/2 up to fOSC/256. The

compare timer operations with its possible compare output signal waveforms are shown

in Figure 12.

Compare Timer 1 in Operating Mode 0

a) Standard PWM (Edge Aligned)

b) Standard PWM (Single Edge Aligned)

with programmable dead time ( t OFF )

Period

Value

Compare

Value

0000 H

CC

COUT

Compare Timer 1 in Operating Mode 1

c) Symetrical PWM (Center Aligned)

Period

Value

Compare

Value

Offset

t OFF

CC

COUT

d) Symetrical PWM (Center Aligned)

with programmable dead time ( t OFF )

Period

Value

Compare

Value

0000 H

CC

COINI=0

COUT

COINI=1

: Interrupts can be generated

Period

Value

Compare

Value

Offset

CC

COINI=0

COUT

COINI=1

t OFF t OFF

MCT03356

Figure 12 Basic Operating Modes of the CAPCOM Unit

Compare Timer 1 can be programmed for both operating modes while Compare Timer 2

works only in operating mode 0 with one output signal of selectable polarity at the pin

COUT3.

Data Sheet

25

2000-05

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