mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 194
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mc68hc912dg128
Manufacturer Part Number
mc68hc912dg128
Description
M68hc12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC912DG128.pdf
(452 pages)
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Pulse Width Modulator
Technical Data
194
LIMBDM
ECLK
PSBCK
*CLOCK S0 = (CLOCK A)/2, (CLOCK A)/4, (CLOCK A)/6,... (CLOCK A)/512
**CLOCK S1 = (CLOCK B)/2, (CLOCK B)/4, (CLOCK B)/6,... (CLOCK B)/512
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
PSBCK IS BIT 0 OF PWCTL REGISTER.
INTERNAL SIGNAL LIMBDM IS ONE IF THE MCU IS IN BACKGROUND DEBUG MODE.
REGISTER:
PWPRES
2
2
2
2
2
2
2
0:0:0
0:0:1
0:1:0
1:0:0
1:1:0
0:1:1
1:0:1
1:1:1
Freescale Semiconductor, Inc.
For More Information On This Product,
BITS:
PCKA2,
PCKA1,
PCKA0
Figure 12-3. PWM Clock Sources
Go to: www.freescale.com
Pulse Width Modulator
8-BIT DOWN COUNTER
8-BIT SCALE REGISTER
8-BIT DOWN COUNTER
8-BIT SCALE REGISTER
PWSCNT1
PWSCNT0
PWSCAL1
PWSCAL0
CLOCK A
CLOCK B
= 0
= 0
2
2
MC68HC912DG128 — Rev 3.0
PCLK3
PCLK2
PCLK0
PCLK1
CLOCK TO PWM
CHANNEL 3
CLOCK TO PWM
CHANNEL 1
CLOCK TO PWM
CHANNEL 2
CLOCK TO PWM
CHANNEL 0
MOTOROLA
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