XC164CS datasheet(32/71 Pages) INFINEON

32 / 71 page

XC164

Derivatives

Functional Description

Data Sheet

V2.1, 2003-06

3.7

The Capture/Compare Unit CAPCOM6

The CAPCOM6 unit supports generation and control of timing sequences on up to three

16-bit capture/compare channels plus one independent 10-bit compare channel.

In compare mode the CAPCOM6 unit provides two output signals per channel which

have inverted polarity and non-overlapping pulse transitions (deadtime control). The

compare channel can generate a single PWM output signal and is further used to

modulate the capture/compare output signals.

In capture mode the contents of compare timer T12 is stored in the capture registers

upon a signal transition at pins CCx.

Compare timers T12 (16-bit) and T13 (10-bit) are free running timers which are clocked

by the prescaled system clock.

Figure 6

CAPCOM6 Block Diagram

For motor control applications both subunits may generate versatile multichannel PWM

signals which are basically either controlled by compare timer T12 or by a typical hall

sensor pattern at the interrupt inputs (block commutation).

CC Channel 0

CC60

CC Channel 1

CC61

CC Channel 2

CC62

MCB04109

Offset Register

T12OF

Compare

Timer T12

16-Bit

Period Register

T12P

Mode

Select Register

CC6MSEL

Trap Register

Port

Control

Logic

Cntrol Register

CTCON

Compare Register

CMP13

Compare

Timer T13

10-Bit

Period Register

T13P

Block

Commutation

Control

CC6MCON.H

CC60

COUT60

CC61

COUT61

CC62

COUT62

CTRAP

CC6POS0

CC6POS1

CC6POS2

CPU

COUT63

The timer registers (T12, T13) are not directly accessible.

The period and offset registers are loading a value into the timer registers.

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