CHAPTER 9 TIMER/COUNTER FUNCTION (REAL-TIME PULSE UNIT)
287
User’s Manual U14492EJ3V0UD
(b) When BFCMnx = CM0n3 is set
Figure 9-34. Operation Timing in PWM Mode 2 (Sawtooth Wave, BFCMnx = CM0n3)
t
t
t
t
CM0n3
CM0n3
CM0n3
a
CM0nx
match
b
b
b
b
b
a
TM0n
count value
Positive phase
(TO0n0, TO0n2, TO0n4)
Negative phase
(TO0n1, TO0n3, TO0n5)
Interrupt request
BFCMnx
DTMnx
F/F
CM0nx
0000H
INTCM0n3
INTCM0n3
INTCM0n3
Set by rising edge of
TM0CEn bit
a
Remarks 1.
n = 0, 1
2.
x = 0 to 2
3.
b = CM0n3
4.
t: Dead time = (DTRRn + 1)/f
CLK
(f
CLK
: Base clock)
5.
The above figure shows an active high case.
If match signal INTCM0n3 for TM0n and CM0n3 and the match signal for TM0n and CM0nx conflict,
reset of the F/F takes precedence, so that the F/F does not get set following match of CM0nx (= CM0n3)
with TM0n.
Содержание V850E/IA1 mPD703116
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