MC68HC908MR8 Datasheet, PDF (200/372 Pages) Motorola, Inc – Microcontrollers

Timer Interface A (TIMA)
11.2 Introduction
This section describes the timer interface module (TIMA). The TIMA is a
2-channel timer that provides:
• Timing reference with input capture
• Output compare
• Pulse-width modulation (PWM) functions
Refer to Figure 11-1 for a block diagram of the TIMA and to Figure 11-2
for a summary of the registers.
For further information regarding timers on M68HC08 family devices,
please consult the HC08 Timer Reference Manual, TIM08RM/AD.
11.3 Features
Features of the TIMA 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 TIMA clock input:
– 7-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
Technical Data
200
Timer Interface A (TIMA)
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor