mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 152

• Manufacturer Part Number: mc68hc908bd48
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Pulse Width Modulator (PWM)
Data Sheet
152
M=$00
M=$01
M=$0F
M=$1F
T=1 CPU clock period (0.167µs if CPU clock=6MHz)
M = value set in 5-bit PWM (bit3-bit7)
N = value set in 3-bit BRM (bit0-bit2)
T
Figure 11-3. 8-Bit PWM Output Waveforms
xx1
x1x
1xx
N
16T
PWM cycles where pulses are
4
2, 6
1, 3, 5, 7
Pulse Width Modulator (PWM)
inserted in a 8-cycle frame
Pulse inserted at end of PWM cycle
depends on setting of N.
1 PWM cycle = 32T
31T
31T
Number of inserted pulses
in a 8-cycle frame
1
2
4
16T
MC68HC908BD48
Freescale Semiconductor
T
—
Rev. 2.1