MC908JB16DWE Datasheet, PDF (138/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

Timer Interface Module (TIM)
10.2 Introduction
This section describes the timer interface (TIM) module. The TIM is a
two-channel timer that provides a timing reference with input capture,
output compare, and pulse-width-modulation functions. Figure 10-1 is a
block diagram of the TIM.
This particular MCU has two timer interface modules which are denoted
as TIM1 and TIM2.
NOTE:
TIM1 and TIM2 each have channel 0 and channel 1 I/Os connected
together, forming a common I/O. Because of this common I/O, both
channels should not be simultaneously configured for output compare
functions, otherwise, port pin contention will occur.
10.3 Features
Features of the TIM include:
• Two input capture/output compare channels on one common I/O:
– 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
– 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
Technical Data
138
Timer Interface Module (TIM)
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor