MC912D60ACPVE8 Datasheet, PDF (212/460 Pages) Freescale Semiconductor, Inc – MC68HC912D60A MC68HC912D60C MC68HC912D60P Technical Data

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