MC68HC908RF2 Datasheet, PDF (198/254 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Timer Interface Module (TIM)
15.2 Introduction
This section describes the timer interface module (TIM). The TIM is a
2-channel timer:
• The first channel, channel 0, provides a timing reference with input
capture, output compare, and pulse-width-modulation (PWM)
functions.
• The second channel, channel 1, provides reduced functionality as
it doesn’t have an external pin.
Figure 15-1 is a block diagram of the TIM.
15.3 Features
Features of the TIM include:
• One input capture/output compare channel:
– Rising-edge, falling-edge, or any-edge input capture trigger
– Set, clear, or toggle output compare action
• Buffered and unbuffered PWM signal generation
• Programmable TIM clock input:
– 7-frequency internal bus clock prescaler selection
– External TIM clock input (bus frequency ÷ 2 maximum)
• Free-running or modulo up-count operation
• Toggle any channel pin on overflow
• TIM counter stop and reset bits
Advance Information
198
Timer Interface Module (TIM)
MC68HC908RF2 — Rev. 1
MOTOROLA