mc68hc908mr32 Freescale Semiconductor, Inc, mc68hc908mr32 Datasheet - Page 141
mc68hc908mr32
Manufacturer Part Number
mc68hc908mr32
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908MR32.pdf
(282 pages)
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Fault Protection
FILTERED FAULT PIN 2 OR 4
PWM(S) ENABLED
PWM(S) ENABLED
PWM(S) DISABLED
FFLAGX CLEARED
Figure 12-30. PWM Disabling in Manual Mode (Example 2)
12.6.2 Software Output Disable
Setting PWM disable bit DISX or DISY in PWM control register 1 immediately disables the corresponding
PWM pins as determined by the bank and disable mapping register. The PWM pin(s) remain disabled
until the PWM disable bit is cleared and a new PWM cycle begins as shown in
Figure
12-31. Setting a
PWM disable bit does not latch a CPU interrupt request, and there are no event flags associated with the
PWM disable bits.
12.6.3 Output Port Control
When operating the PWMs using the OUTx bits (OUTCTL = 1), fault protection applies as described in
this section. Due to the absence of periodic PWM cycles, fault conditions are cleared upon each CPU
cycle and the PWM outputs are re-enabled, provided all fault clearing conditions are satisfied.
DISABLE BIT
PWM(S) ENABLED
PWM(S) DISABLED
PWM(S) ENABLED
Figure 12-31. PWM Software Disable
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
Freescale Semiconductor
141
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