MC9S12T64 Datasheet, PDF (371/608 Pages) Motorola, Inc – Specification

Freescale Semiconductor, Inc.
Contents
Overview
MOTOROLA
Enhanced Capture Timer
(ECT)
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Modes of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
External Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
The HC12 Enhanced Capture Timer module has the features of the
HC12 Standard Timer module enhanced by additional features in order
to enlarge the field of applications, in particular for automotive ABS
applications.
The basic timer consists of a 16-bit, software-programmable counter
driven by a prescaler. This timer can be used for many purposes,
including input waveform measurements while simultaneously
generating an output waveform. Pulse widths can vary from
microseconds to many seconds.
A full access for the counter registers or the input capture/output
compare registers should take place in one clock cycle. Accessing high
byte and low byte separately for all of these registers may not yield the
same result as accessing them in one word.
Enhanced Capture Timer (ECT)
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MC9S12T64Revision 1.1.1
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