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Chapter 27 Timers
MPC5606BK Microcontroller Reference Manual, Rev. 2
690
Freescale Semiconductor
Figure 27-42. OPWMCB with trail dead time insertion
FLAG can be generated in the trailing edge of the output PWM signal when MODE[5] is cleared, or in
both edges, when MODE[5] is set. If subsequent matches occur on comparators A and B, the PWM pulses
continue to be generated, regardless of the state of the FLAG bit.
NOTE
In OPWMCB mode, FORCMA and FORCMB do not have the same
behavior as a regular match. Instead, they force the output flip-flop to a
constant value that depends upon the selected dead time insertion mode,
lead or trail, and the value of the EDPOL bit.
FORCMA has different behaviors depending upon the selected dead time insertion mode, lead or trail. In
lead dead time insertion FORCMA force a transition in the output flip-flop to the opposite of EDPOL. In
trail dead time insertion the output flip-flop is forced to the value of EDPOL bit.
If bit FORCMB is set, the output flip-flop value depends upon the selected dead time insertion mode. In
lead dead time insertion FORCMB forces the output flip-flop to transition to EDPOL bit value. In trail
dead time insertion the output flip-flop is forced to the opposite of EDPOL bit value.
NOTE
FORCMA bit set does not set the internal time-base to 0x1 as a regular A1
match.
The FLAG bit is not set either in case of a FORCMA or FORCMB or even if both forces are issued at the
same time.
EDPOL = 1
internal
time
base
internal counter is
set to 1 on A1 match
dead time
A1 value
A2 value
B1 value
B2 value
write to B2
selected
counter bus
0x000002
0x000004
0x000002
0x000004
0x000015
0x000015
write to A2
0x000013
0x000013
0x000001
0x000002
0x000004
0x000015
0x000013
0x000020
dead time
output flip-flop
FLAG pin/register
0x000001
Summary of Contents for MPC5605BK
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Page 20: ...MPC5606BK Microcontroller Reference Manual Rev 2 20 Freescale Semiconductor...
Page 103: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 103 Clocks and power...
Page 645: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 643 Timers...
Page 715: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 713 ADC system...
Page 787: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 787 Memory...
Page 893: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 893 Integrity...
Page 943: ...MPC5606BK Microcontroller Reference Manual Rev 2 Freescale Semiconductor 943 Debug...