參數(shù)資料
型號： MC68HC705CT4FB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 2.048 MHz, MICROCONTROLLER, PQFP44
封裝： QFP-44
文件頁數(shù)： 150/152頁
文件大小： 964K
代理商： MC68HC705CT4FB
Pulse Width Modulator (PWM)
PWM During Wait Mode
MC68HC705CT4 — Rev. 2.0
General Release Specification
MOTOROLA
Pulse Width Modulator (PWM)
97
NON-DISCLOSURE
AGREEMENT
REQUIRED
12.5 PWM During Wait Mode
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.
12.6 PWM During Stop Mode
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.
12.7 PWM During Reset
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.
12.8 PWM Power Supply Source
The PWM is supplied by VDD and VSS, due to the noise generated by the
digital circuitry, since this module is not affected by supply noise.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關(guān)PDF資料
PDF描述
MC68HC705CT4FN 8-BIT, OTPROM, 2.048 MHz, MICROCONTROLLER, PQCC44
MC68HC705E5P 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
MC68HC705F32CPU 8-BIT, OTPROM, 1.789 MHz, MICROCONTROLLER, PQFP100
MC68HC705F32CFU 8-BIT, OTPROM, 1.789 MHz, MICROCONTROLLER, PQFP80
MC68HC705F32FU 8-BIT, OTPROM, 1.789 MHz, MICROCONTROLLER, PQFP80
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