Renesas M16C Series User Manual page 309

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Timer A0 count
start flag
Timer A1 count
start flag
PWM pulse output
from TA1
OUT
Timer A0 interrupt
request bit
Timer A1 interrupt
request bit
Figure 3.2.1. Operation timing of variable-period variable-duty PWM output
f
Figure 3.2.2. Connection diagram of variable-period variable-duty PWM output
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
l = reload register content
(1) Timer A0 start count
FFFF
16
l
0000
16
n = reload register content
FFFF
16
n
0001
16
Set to "1" by software
"1"
"0"
Set to "1" by software
"1"
"0"
"H"
pin
"L"
"1"
"0"
Cleared to "0" when interrupt request is accepted, or cleared by software
"1"
"0"
f
1
Used for timer mode (Set to period)
f
8
Timer A0
f
32
C32
Timer A1
Used for one-shot timer mode (Set to "H" width)
page 300 of 354
(2) Timer A0 underflow
(3) Timer A1 start count
(4) Timer A1 stop count
1ms
Cleared to "0" when interrupt request is accepted, or cleared by software
Timer A0 interrupt request bit
Timer A1 interrupt request bit
3. Timer A Applications
500µs
Time
Time