FlexPWM RM0046
644/936 Doc ID 16912 Rev 5
25.3 Modes of operation
Care must be exercised when using this module in certain device operating modes. Some
motors (such 3-phase AC motors) require regular software updates for proper operation.
Failure to do so could result in destroying the motor or inverter. Because of this, PWM
outputs are placed in their inactive states in STOP mode, and optionally under WAIT/HALT
and debug modes. PWM outputs will be reactivated (assuming they were active to begin
with) when these modes are exited.
Table 341. Modes when PWM operation is restricted
Mode Description
STOP Peripheral and CPU clocks are stopped. PWM outputs are driven inactive.
WAIT/HALT
CPU clocks are stopped while peripheral clocks continue to run. PWM outputs are
driven inactive as a function of the WAITEN bit.
(1)
1. WAIT mode may be called HALT mode at the SoC level.
DEBUG
CPU and peripheral clocks continue to run, but CPU maybe stalled for periods of
time. PWM outputs are driven inactive as a function of the DBGEN bit.