MC68HC16Z1CAG16 Datasheet, PDF (281/500 Pages) Freescale Semiconductor, Inc – M68HC16Z Series users manual

Freescale Semiconductor, Inc.
16-BIT DATA BUS
PWMA REGISTER
PWMB REGISTER
PWMBUFA REGISTER PWMBUFB REGISTER
PWMA
PIN
F1A
BIT
R
LATCH
S
ZERO DETECTOR
"A" COMPARATOR
"B" COMPARATOR
R
LATCH
S
ZERO DETECTOR
PWMB
PIN
F1B
BIT
SFA
BIT
"A" MULTIPLEXER
"B" MULTIPLEXER
SFB
BIT
16-BIT COUNTER [14:0]
FROM
PRESCALER CLOCK
Figure 11-6 PWM Block Diagram
16/32 PWM BLOCK
The PWM unit has two operational modes. Fast mode uses a clocking rate that equals
1/256 of the prescaler output rate; slow mode uses a rate equal to 1/32768 of the pres-
caler output rate. The duty cycle ratios of the two PWM channels can be individually
controlled by software. The PWMA pin can also output the clock that drives the PWM
counter. PWM pins can also be used as output pins.
M68HC16 Z SERIES
USER’S MANUAL
GENERAL-PURPOSE TIMER
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