mc68hc05ct4fn Freescale Semiconductor, Inc, mc68hc05ct4fn Datasheet - Page 97

• Manufacturer Part Number: mc68hc05ct4fn
• Description: Mc68hc05 Family Of Microcontrollers Mcus
• Manufacturer: Freescale Semiconductor, Inc

12.5 PWM During Wait Mode
12.6 PWM During Stop Mode
12.7 PWM During Reset
12.8 PWM Power Supply Source
MC68HC05CT4
—
Rev. 2.0
The PWM continues normal operation during wait mode. To decrease
power consumption during WAIT, it is recommended that the PWME bit
in the miscellaneous control register be cleared if the PWM D/A
converter is not being used.
In stop mode, the oscillator is stopped, causing the PWM to cease
function. Any signal in process is halted in whatever phase the signal
happens to be in. Disabling the PWM before executing the STOP
instruction is recommended.
Upon reset the PWME bit is cleared. In effect, this disables the PWM
system and configures the PC7/PWM pin as a high impedance port C
input pin. The user should write to the data register prior to enabling the
PWM system (for instance, prior to setting PWME). This avoids an
erroneous duty cycle from being driven.
The PWM is supplied by V
digital circuitry, since this module is not affected by supply noise.
Freescale Semiconductor, Inc.
For More Information On This Product,
Pulse Width Modulator (PWM)
Go to: www.freescale.com
DD
and V
SS
, due to the noise generated by the
Pulse Width Modulator (PWM)
General Release Specification
PWM During Wait Mode