MC68HC908MR8 Datasheet, PDF (186/372 Pages) Motorola, Inc – Microcontrollers

Pulse-Width Modulator for Motor Control
CENTER-ALIGNED MODE
PWM CLOCK CYCLE
PWM CYCLE (OR PERIOD)
EDGE-ALIGNED MODE
PWM
CLOCK
CYCLE
PWM CYCLE (OR PERIOD)
Figure 9-43. PWM Clock Cycle and PWM Cycle Definitions
PWM Load Frequency — The frequency at which new PWM
parameters get loaded into the PWM. See Figure 9-44.
LDFQ1:LDFQ0 = 01 — RELOAD EVERY TWO CYCLES
RELOAD NEW
MODULUS,
PRESCALER,
AND PWM VALUES
IF LDOK = 1
PWM LOAD CYCLE
(1/PWM LOAD FREQUENCY)
RELOAD NEW
MODULUS,
PRESCALER,
AND PWM VALUES
IF LDOK = 1
Figure 9-44. PWM Load Cycle/Frequency Definition
Technical Data
186
MC68HC908MR8 — Rev 4.1
Pulse-Width Modulator for Motor Control (PWMMC) Freescale Semiconductor