mc68hc912bd32 Freescale Semiconductor, Inc, mc68hc912bd32 Datasheet - Page 123

• Manufacturer Part Number: mc68hc912bd32
• Description: 16-bit Device Composed Of Standard On-chip Peripherals
• Manufacturer: Freescale Semiconductor, Inc

PWSCNT1— PWM Scale Counter 1 Value
PWSCNT0— PWM Scale Counter 0 Value
PWSCAL1— PWM Scale Register 1
11-pwm
RESET:
RESET:
RESET:
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
0
0
0
PWSCNT0 is a down-counter that, upon reaching $00, loads the
value of PWSCAL0. Read any time.
Read and write anytime. A write will cause the scaler counter
PWSCNT1 to load the PWSCAL1 value unless in Special mode with
DISCAL =1 in the PWTST register.
PWM channels 2 and 3 can select clock S1 (scaled) as its input clock
by setting the control bit PCLK2 and PCLK3 respectively. Clock S1 is
generated by dividing clock B by the value in the PWSCAL1 register
and dividing again by two. When PWSCAL1 = $FF, clock B is divided
by 256 then divided by two to generate clock S1.
PWSCNT1 is a down-counter that, upon reaching $00, loads the
value of PWSCAL1. Read any time.
Freescale Semiconductor, Inc.
6
6
0
6
6
0
6
6
0
For More Information On This Product,
Go to: www.freescale.com
5
5
0
5
5
0
5
5
0
Pulse Width Modulator
4
4
0
4
4
0
4
4
0
3
3
0
3
3
0
3
3
0
2
2
0
2
2
0
2
2
0
MC68HC912BD32 Rev 1.0
PWM Register Description
1
1
0
1
1
0
1
1
0
Pulse Width Modulator
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
0
0
0
$0047
$0045
$0046