MC68HC705 MOTOROLA [Motorola, Inc], MC68HC705 Datasheet - Page 87

• Manufacturer Part Number: MC68HC705
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

8.1 Contents
8.2 Introduction
8.3 Timer Operation
MC68HC705C8A — Rev. 2.0
MOTOROLA
Technical Data — MC68HC705C8A
8.2
8.3
8.3.1
8.3.2
8.4
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
8.4.6
This section describes the operation of the 16-bit capture/compare timer.
Figure 8-1
summary of the timer input/output (I/O) registers.
The core of the capture/compare timer is a 16-bit free-running counter.
The counter is the timing reference for the input capture and output
compare functions. The input capture and output compare functions can
latch the times at which external events occur, measure input
waveforms, and generate output waveforms and timing delays. Software
can read the value in the counter at any time without affecting the
counter sequence.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Timer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Timer I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Input Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Output Compare. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Timer Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Timer Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Timer Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Alternate Timer Registers. . . . . . . . . . . . . . . . . . . . . . . . . . .96
Input Capture Registers . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Output Compare Registers. . . . . . . . . . . . . . . . . . . . . . . . . .99
shows the structure of the timer module.
Section 8. Capture/Compare Timer
Capture/Compare Timer
Figure 8-2
Technical Data
is a
87