MC68HC05P1ADW FREESCALE [Freescale Semiconductor, Inc], MC68HC05P1ADW Datasheet - Page 63

• Manufacturer Part Number: MC68HC05P1ADW
• Description: General Release Specification
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

General Release Specification — MC68HC05P1A
8.1 Contents
8.2 Introduction
MC68HC05P1A
—
Rev. 3.0
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
The MC68HC05P1A MCU contains a single 16-bit programmable timer
with an input capture function and an output compare function. The 16-
bit timer is driven by the output of a fixed divide-by-four prescaler
operating from the PH2 clock. The 16-bit timer may be used for many
applications, including input waveform measurement, while
simultaneously generating an output waveform. Pulse widths can vary
from microseconds to seconds depending on the oscillator frequency
selected. The 16-bit timer also is capable of generating periodic
interrupts. See
Because the timer has a 16-bit architecture, each function is represented
by two registers. Each register pair contains the high and low byte of that
function. Generally, accessing the low byte of a specific timer function
allows full control of that function; however, an access of the high byte
inhibits that specific timer function until the low byte is also accessed.
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For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Output Compare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Input Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Timer Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Timer Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Timer Operation During Wait Mode . . . . . . . . . . . . . . . . . . . . .75
Timer Operation During Stop Mode . . . . . . . . . . . . . . . . . . . . .75
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Figure
16-Bit Timer
8-1.
Section 8. 16-Bit Timer
General Release Specification