MC68HC908GP20 Datasheet, PDF (352/406 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

22.2 Introduction
This section describes the timer interface (TIM) module. The TIM is a 2-
channel timer that provides a timing reference with input capture, output
compare, and pulse-width-modulation functions. Figure 22-1 is a block
diagram of the TIM. This particular MCU has two timer interface modules
which are denoted as TIM1 and TIM2.
22.3 Features
Features of the TIM include:
• Two input capture/output compare channels:
– Rising-edge, falling-edge, or any-edge input capture trigger
– Set, clear, or toggle output compare action
• Buffered and unbuffered pulse-width-modulation (PWM) signal
generation
• Programmable TIM clock input with 7-frequency internal bus clock
prescaler selection
• Free-running or modulo up-count operation
• Toggle any channel pin on overflow
• TIM counter stop and reset bits
• DMA (direct-memory access) service request generation
(optional, not available on this MCU)
• Modular architecture expandable to eight channels
• I/O port bit(s) software configurable with pullup device(s) if
configured as input port bit(s)
Advance Information
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MC68HC908GP20 — Rev 2.1
Freescale Semiconductor