
NON-DISCLOSURE
AGREEMENT
REQUIRED
Pulse Width Modulator
MC68HC705MC4 — Rev. 2.0
Pulse Width Modulator
Figure 10-11. State Timing Diagram for PWM UPDATE Generator (Sheet 3 of 3)
DC1
DC2
CYCLE 1
CYCLE 2
CYCLE 3
CYCLE 4
CYCLE 5
DUTY CYCLE 1
DUTY CYCLE 2
T
DC1 POL = 0
DC2 POL = 0
UPDATE: CLEARED
UPDATE SET/
CASE 5 — DC2 > DC1 >T
DC1 POL = 0
DC2 POL = 0
DC1 POL = 0
DC2 POL = 1
DC1 POL = 1
DC2 POL = 1
DC1 POL = 1
DC2 POL = 0
DC2
DC1
DUTY CYCLE 1
DUTY CYCLE 2
DC1 POL = 0
DC2 POL = 0
UPDATE: CLEARED
UPDATE SET/
CASE 6 — DC1 > DC2 > T
DC1 POL = 0
DC2 POL = 0
DC1 POL = 0
DC2 POL = 1
DC1 POL = 1
DC2 POL = 1
DC1 POL = 1
DC2 POL = 0
INTERLOCK SATISFIED
T
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Freescale Semiconductor, Inc.
For More Information On This Product,
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