MC68HC08AZ0 Datasheet, PDF (255/444 Pages) Motorola, Inc – Advance Information

Freescale Semiconductor, Inc.
Timer Interface Module A (TIMA)
Functional description
Functional description
Figure 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
of the TIMA counter. Software can read the TIMA counter value at any
time without affecting the counting sequence.
The four TIMA channels are programmable independently as input
capture or output compare channels.
TIMA counter
prescaler
The TIMA clock source can be one of the seven prescaler outputs or the
TIMA clock pin, PTD6/ATD14/TACLK. The prescaler generates seven
clock rates from the internal bus clock. The prescaler select bits, PS[2:0],
in the TIMA status and control register select the TIMA clock source.
3-tima
MOTOROLA
Timer Interface Module A (TIMA)
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MC68HC08AZ0
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