CHAPTER 9 TIMER/COUNTER FUNCTION
268
User’s Manual U15195EJ5V0UD
Figure 9-30. Operation Timing in PWM Mode 2 (Sawtooth Wave) (1/2)
(a) Operation timing of compare registers 0n0 to 0n2 (CM0n0 to CM0n2)
t
t
t
t
t
CM0n3 (d)
CM0n3 (e)
a
b
CM0nx
match
CM0nx
match
b
c
e
f
b
c
a
a
e
f
d
d
TM0n
count value
Positive phase
(TO0n0, TO0n2, TO0n4)
Negative phase
(TO0n1, TO0n3, TO0n5)
Interrupt request
BFCMnx
BFCMn3
CM0n3
DTMnx
F/F
CM0nx
0000H
INTCM0n3
INTCM01x
INTCM01x INTCM0n3
Set by rising edge of
TM0CEn bit
Remarks 1.
The above figure shows the timing chart when both BFTE3 and BFTEN of the TMC0n register
are 1, and transfer from BFCMn3 to CM0n3, or from BFCMnx to CM0nx is enabled. Transfer is
not performed when BFTE3 = 0 or BFTEN = 0.
2.
n = 0, 1
3.
x = 0 to 2
4.
t: Dead time = (DTRRn + 1)/f
CLK
(f
CLK
: Base clock)
5.
The above figure shows an active-high case.
6.
INTCM01x is generated on a match between TM01 and CM01x (a and b in the above figure).
INTCM00x is not generated.
Содержание PD703114
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