Pulse-Width Modulator for Motor Control (PWMMC)
Center-Aligned Mode
PWM CLOCK CYCLE
PWM CYCLE (OR PERIOD)
Edge-Aligned Mode
PWM
CLOCK
CYCLE
PWM CYCLE (OR PERIOD)
Figure 12-47. PWM Clock Cycle and PWM Cycle Definitions
PWM Load Frequency — Frequency at which new PWM parameters get loaded
into the PWM. See Figure 12-48.
LDFQ1:LDFQ0 = 01 — Reload Every Two Cycles
PWM LOAD CYCLE
(1/PWM LOAD FREQUENCY)
RELOAD NEW
MODULUS,
RELOAD NEW
MODULUS,
PRESCALER, &
PWM VALUES IF
LDOK = 1
PRESCALER, &
PWM VALUES IF
LDOK = 1
Figure 12-48. PWM Load Cycle/Frequency Definition
Data Sheet
168
MC68HC908MR32 • MC68HC908MR16 — Rev. 6.0
Pulse-Width Modulator for Motor Control (PWMMC) MOTOROLA
FREESCALE [ Freescale ]
