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R01UH0336EJ0102 Rev.1.02
Page 485 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 13 Timer Array Unit B (TAUB)
(2)
Equations
Simultaneous rewrite trigger generation cycle = count clock cycle x
(TAU 1)
To control simultaneous rewrite, the following condition should be satisfied:
[PWM]
TAUBnCDRm = [(value of TAUBnCDRm of master channel subject to
simultaneous r 1) × number of interrupts] - 1
[Triangle PWM]
TAUBnCDRm = [(value of TAUBnCDRm of master channel subject to
simultaneous r 1) × 2 × number of interrupts] - 1
That is, the ratio of TAU 1 and TAUBnCDRm_ 1 should be
an integer. This integer corresponds to the number of interrupts.
For triangle PWM, remember that the cycle doubles.
(3)
Block diagram and general timing diagram
Figure 13-47
Block Diagram of Simultaneous Rewrite Trigger Generation Function
Type 1
INT
Lower channel 2:
when RDCm = 0
Lower channel 1:
when RDCm = 0
Simultaneous rewrite
Start trigger from master
Simultaneous rewrite
INT from master
INT from upper channe
Start trigger from master
INT from master
INT from upper channe
Start trigger from master
INT from master
INT from upper channe
Trigger from upper channel
Trigger from upper channel
Clo
ck
s
e
le
c
tor
edge
selector
Tr
ig
g
e
r s
e
le
c
to
r
Clock selector
edge
selector
Trigger selector
Clock selector
edge
selector
Trigger selector
Start and
capture trigger
Start and
capture trigger
Start and
capture trigger
Trigger from lower channel
Trigger from lower channel
Trigger from upper channel
Trigger from lower channel
Count clock
Count clock
Count clock
Upper channel:
RDCm = 1
Interval timer mode
Simultaneous rewrite trigger from upper channels
INT
INT
TAUBnCNTm
TAUBnTO.
TAUBnTOm
TAUBnTRO.
TAUBnTROm
TAUBnCDRm
TAUBnTS.TAUBnTSm
CK3-0
TAUBnTTINm
TAUBnTTOUTm
INTTAUBnIm
TAUBnCNTm
TAUBnTO.
TAUBnTOm
TAUBnTRO.
TAUBnTROm
TAUBnCDRm
TAUBnTS.TAUBnTSm
CK3-0
TAUBnTTINm
TAUBnTTOUTm
INTTAUBnIm
TAUBnCNTm
TAUBnTO.
TAUBnTOm
TAUBnTRO.
TAUBnTROm
TAUBnCDRm
TAUBnTS.TAUBnTSm
CK3-0
TAUBnTTINm
TAUBnTTOUTm
INTTAUBnIm