mc68331cpv20b1 Freescale Semiconductor, Inc, mc68331cpv20b1 Datasheet - Page 174

• Manufacturer Part Number: mc68331cpv20b1
• Description: Mc68331 32 Bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

7
7.11.1 PWM Counter
7-16
The 16-bit counter in the PWM unit is similar to the timer counter in the capture/com-
pare unit. During reset, the GPT is configured to use the system clock divided by two
to drive the counter. Initialization software can reconfigure the counter to use one of
seven prescaler outputs or an external clock input from the PCLK pin.
16-BIT COUNTER
PRESCALER
FROM
PWMA
F1A
PIN
BIT
ZERO DETECTOR
LATCH
SFA
Freescale Semiconductor, Inc.
BIT
R
S
For More Information On This Product,
Figure 7-6 PWM Block Diagram
16-BIT TIMER BUS
GENERAL-PURPOSE TIMER
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PWMBUFA REGISTER
PWMA REGISTER
COMPARATOR A
MULTIPLEXER A
16-BIT DATA BUS
PWMBUFB REGISTER
PWMB REGISTER
COMPARATOR B
MULTIPLEXER B
ZERO DETECTOR
LATCH
SFB
BIT
R
S
USER’S MANUAL
16/32 PWM BLOCK
MC68331
PWMB
PIN
F1B
BIT