MC68HC912BD32CFU10 FREESCALE [Freescale Semiconductor, Inc], MC68HC912BD32CFU10 Datasheet - Page 122

• Manufacturer Part Number: MC68HC912BD32CFU10
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

PWSCAL0— PWM Scale Register 0
PWPRES— PWM Prescale Counter
Pulse Width Modulator
MC68HC912BD32 Rev 1.0
RESET:
RESET:
Bit 7
Bit 7
Bit 7
0
0
0
PWEN0 — PWM Channel 0 Enable
The pulse modulated signal will be available at port P, bit 0 when its
clock source begins its next cycle.
Bit 6
PWPRES is a free running 7-bit counter. Read anytime. Write only in
Special mode (SMOD = 1).
Read and write anytime. A write will cause the scaler counter
PWSCNT0 to load the PWSCAL0 value unless in Special mode with
DISCAL =1 in the PWTST register.
PWM channels 0 and 1 can select clock S0 (scaled) as its input clock
by setting the control bit PCLK0 and PCLK1 respectively. Clock S0 is
generated by dividing clock A by the value in the PWSCAL0 register
and dividing again by two. When PWSCAL0 = $FF, clock A is divided
by 256 then divided by two to generate clock S0. In Special Mode
when DISCAL = 1, writes to PWSCAL0 does not load Scale-Counter
0 (PWSCNT0).
Freescale Semiconductor, Inc.
6
6
0
6
0
For More Information On This Product,
0 = Channel 0 is disabled.
1 = Channel 0 is enabled.
Go to: www.freescale.com
5
5
0
5
5
0
Pulse Width Modulator
4
4
0
4
4
0
3
3
0
3
3
0
2
2
0
2
2
0
1
1
0
1
1
0
Bit 0
Bit 0
Bit 0
Bit 0
0
0
$0043
$0044
10-pwm