mc68hc912d60c Freescale Semiconductor, Inc, mc68hc912d60c Datasheet - Page 210

• Manufacturer Part Number: mc68hc912d60c
• Description: Hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Pulse Width Modulator
13.3 PWM Register Description
PWCLK — PWM Clocks and Concatenate
Technical Data
210
RESET:
LIMBDM
ECLK
PSBCK
*CLOCK S0 = A/2 * (PWSCAL0 + 1)
**CLOCK S1 = B/2 * (PWSCAL1 + 1)
BITS:
PCKB2,
PCKB1,
PCKB0
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
1:1:0
1:1:1
CON23
Bit 7
0
PSBCK IS BIT 0 OF PWCTL REGISTER.
INTERNAL SIGNAL LIMBDM IS ‘1’ IF THE MCU IS IN BACKGROUND DEBUG MODE.
REGISTER:
PWPRES
÷
÷
÷
÷
÷
÷
÷
2
2
2
2
2
2
2
CON01
6
0
Read and write anytime.
0:0:0
0:0:1
0:1:0
1:0:0
1:1:0
0:1:1
1:0:1
1:1:1
BITS:
PCKA2,
PCKA1,
PCKA0
Figure 13-3. PWM Clock Sources
PCKA2
5
0
Pulse Width Modulator
PCKA1
8-BIT DOWN COUNTER
8-BIT SCALE REGISTER
8-BIT DOWN COUNTER
8-BIT SCALE REGISTER
4
0
PWSCNT1
PWSCNT0
PWSCAL1
PWSCAL0
PCKA0
CLOCK B
CLOCK A
3
0
= 0
= 0
PCKB2
÷
÷
2
0
2
2
PCKB1
MC68HC912D60A — Rev. 3.1
1
0
PCLK3
Freescale Semiconductor
PCLK0
PCLK1
PCLK2
PCKB0
CLOCK TO PWM
CHANNEL 3
CLOCK TO PWM
CHANNEL 1
CLOCK TO PWM
CHANNEL 2
CLOCK TO PWM
CHANNEL 0
Bit 0
0
$0040