MC68HC05V12 Datasheet, PDF (115/246 Pages) Freescale Semiconductor, Inc – HCMOS Microcontreller Unit

Freescale Semiconductor, Inc.
Pulse Width Modulators (PWMs)
PWM Functional Description
occurred, at which time the new data value is loaded into the PWM data
register.
However, should a write to the registers be performed when the PWM
subsystem is disabled, the data is transferred immediately. All registers
are updated after the PWM data register is written to and the end of a
PWM cycle occurs.
The PWM output can have an active high or an active low pulse under
software control using the POL (polarity) bit as shown in Figure 11-2 and
Figure 11-3.
T
$05
$3F
$1F
PWM REGISTER = $00
Figure 11-2. PWM Waveform Examples (POL = 1)
T
$05
$3F
$1F
MC68HC05V12 — Rev. 2.0
PWM REGISTER = $00
Figure 11-3. PWM Waveform Examples (POL = 0)
Pulse Width Modulators (PWMs)
For More Information On This Product,
Go to: www.freescale.com
Technical Data