Renesas M30245 Series User Manual page 311

M30245 Group
FFFF
0000
FFFF
0001
Timer A0 count
start flag
Timer A1 count
start flag
PWM pulse output
from TA1 pin
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
1
f
8
f
32
f
C32
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
16 (2) Timer A0 underflow
l
16
n = reload register content
(3) Timer A1 start count
16
n
16
Set to "1" by software
"1"
"0"
Set to "1" by software
"1"
"0"
"H"
"L"
"1"
"0"
Cleared to "0" when interrupt request is accepted, or cleared by software
"1"
"0"
Cleared to "0" when interrupt request is accepted, or cleared by software
Used for timer mode (Set to period)
Timer A0
Timer A1
Used for one-shot timer mode (Set to "H" width)
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(4) Timer A1 stop count
1ms
Timer A0 interrupt request bit
Timer A1 interrupt request bit
3. Timer A Applications
500µs
Time
Time