MC68HC908AT32 Datasheet, PDF (287/378 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 25
Timer Interface (TIM-6)
NOTE
This timer is for the J1850 (52-pin PLCC) protocol only.
25.1 Introduction
This section describes the timer interface module (TIMA). The TIMA is a 6-channel timer that provides a
timing reference with input capture, output compare, and pulse-width modulation functions. Figure 25-1
is a block diagram of the TIMA.
25.2 Features
Features of the TIMA include:
• Six 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 TIMA clock input:
– 7-frequency internal bus clock prescaler selection
– External TIMA clock input (4-MHz maximum frequency)
• Free-running or modulo up-counter operation
• Toggle any channel pin on overflow
• TIMA counter stop and reset bits
MC68HC908AT32 Data Sheet, Rev. 3.1
Freescale Semiconductor
287