MC68HC708MP16 Datasheet, PDF (202/398 Pages) Freescale Semiconductor, Inc – Microcontrollers

Timer Interface Module A (TIMA)
11.2 Introduction
This section describes the timer interface module (TIM2, Version B). The
TIMA is a two-channel timer that provides a timing reference with input
capture, output compare, and pulse-width-modulation functions. Figure
11-1 is a block diagram of the TIM.
NOTE: Timer interface module A (TIMA) is only available in the 64-pin quad flat
package.
11.3 Features
Features of the TIMA include the following:
• 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 TIMA clock input
– Seven-frequency internal bus clock prescaler selection
– External TIMA clock input (4-MHz maximum frequency)
• Free-running or modulo up-count operation
• Toggle any channel pin on overflow
• TIMA counter stop and reset bits
• Modular architecture expandable to eight channels
11.4 Functional Description
Figure 11-1 shows the structure of the TIMA. The central component of
the TIMA is the 16-bit TIMA counter that can operate as a free-running
counter or a modulo up-counter. The TIMA counter provides the timing
reference for the input capture and output compare functions. The TIMA
counter modulo registers, TAMODH:TAMODL, control the modulo value
Technical Data
202
Timer Interface Module A (TIMA)
MC68HC708MP16 — Rev. 3.1
Freescale Semiconductor