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Chapter 43 Stepper Motor Controller

2.Registers

Figure 1-2 Stepping Motor Controller

Remark: The SMC channels 4 and 5 are not shared with ADC inputs.2. Registers

There are seven types of registers for the stepping motor controller:

PWM Control register

PWM1 Compare register

PWM2 Compare register

PWM1 Selection register

PWM2 Selection register

PWM2 pulse generator
PWM1 pulse generator
CKEN PWM
PWM1 compare register PWM1 selection
register
Selector
Output
enable
PWM1PPWM1M
Output
enable
PWM2P
load
BS
PWM2M
Selector
CKEN PWM
PWM2 compare register PWM2 selection register
P25.3/SMC2M4
P25.2/SMC2P4
P25.1/SMC1M4
P25.0/SMC1P4
Port 25
PWM control register PFR25
CE bit
SC bit
PWM
Clock
Prescaler
PeripheralclockCLKP
SMC channel 4