Motor Controller (MC10B8CV1)
MC9S12XHY-Family Reference Manual, Rev. 1.01
Freescale Semiconductor
693
20.4.5
Operation in Wait Mode
During wait mode, the operation of the motor controller pins are selectable between the following two
options:
1. MCSWAI = 1: All module clocks are stopped and the associated port pins are set to their inactive
state, which is defined by the state of the RECIRC bit during wait mode. The motor controller
module registers stay the same as they were prior to entering wait mode. Therefore, after exiting
from wait mode, the associated port pins will resume to the same functionality they had prior to
entering wait mode.
2. MCSWAI = 0: The PWM clocks continue to run and the associated port pins maintain the
functionality they had prior to entering wait mode both during wait mode and after exiting wait
mode.
20.4.6
Operation in Stop and Pseudo-Stop Modes
All module clocks are stopped and the associated port pins are set to their inactive state, which is defined
by the state of the RECIRC bit. The motor controller module registers stay the same as they were prior to
entering stop or pseudo-stop modes. Therefore, after exiting from stop or pseudo-stop modes, the
associated port pins will resume to the same functionality they had prior to entering stop or pseudo-stop
modes.
20.5
Reset
The motor controller is reset by system reset. All associated ports are released, all registers of the motor
controller module will switch to their reset state as defined in
Section 20.3.2, “Register Descriptions”
.
20.6
Interrupts
The motor controller has one interrupt source.
20.6.1
Timer Counter Overflow Interrupt
An interrupt will be requested when the MCTOIE bit in the motor controller control register 1 is set and
the running PWM frame is finished. The interrupt is cleared by either setting the MCTOIE bit to 0 or to
write a 1 to the MCTOIF bit in the motor controller control register 0.
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