mc68hc912d60c Freescale Semiconductor, Inc, mc68hc912d60c Datasheet - Page 212

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

Pulse Width Modulator
PWPOL — PWM Clock Select and Polarity
Technical Data
212
RESET:
PCLK3
Bit 7
0
PCLK2
6
0
PCKB2 – PCKB0 — Prescaler for Clock B
Read and write anytime.
PCLK3 — PWM Channel 3 Clock Select
PCLK2 — PWM Channel 2 Clock Select
PCLK1 — PWM Channel 1 Clock Select
Clock B is one of two clock sources which may be used for channels
2 and 3. These three bits determine the rate of clock B, as shown in
Table
0 = Clock B is the clock source for channel 3.
1 = Clock S1 is the clock source for channel 3.
0 = Clock B is the clock source for channel 2.
1 = Clock S1 is the clock source for channel 2.
0 = Clock A is the clock source for channel 1.
1 = Clock S0 is the clock source for channel 1.
PCLK1
5
0
13-1.
Table 13-1. Clock A and Clock B Prescaler
Pulse Width Modulator
(PCKB2)
PCLK0
PCKA2
4
0
0
0
0
0
1
1
1
1
(PCKB1)
PPOL3
PCKA1
3
0
0
0
1
1
0
0
1
1
(PCKB0)
PCKA0
PPOL2
0
1
0
1
0
1
0
1
2
0
Clock A (B)
PPOL1
Value of
MC68HC912D60A — Rev. 3.1
P ÷ 128
P ÷ 16
P ÷ 32
P ÷ 64
1
0
P ÷ 2
P ÷ 4
P ÷ 8
P
Freescale Semiconductor
PPOL0
Bit 0
0
$0041