Freescale Semiconductor MC68HC908MR32 Manual Do Utilizador

Freescale Semiconductor

215

This section describes the timer interface module A (TIMA). The TIMA is a 4-channel timer that provides: 

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Timing reference with input capture

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Output compare

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Pulse-width modulator functions

 is a block diagram of the TIMA.

Features of the TIMA include:

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Four input capture/output compare channels:
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Rising-edge, falling-edge, or any-edge input capture trigger

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Set, clear, or toggle output compare action

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Buffered and unbuffered pulse-width modulator (PWM) signal generation

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Programmable TIMA clock input:
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7-frequency internal bus clock prescaler selection

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External TIMA clock input (4-MHz maximum frequency)

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Free-running or modulo up-count operation

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Toggle any channel pin on overflow

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TIMA counter stop and reset bits