AT32F425
Series Reference Manual
2022.03.30
Page 199
Ver 2.01
Slave mode: Reset mode
The counter and its prescaler can be reset by a selected trigger signal. An overflow event
is generated when OVFS=0.
Figure 14-26
Example of reset mode
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
COUNTER
30
31
32
0
...
PR[15:0]
CI1F1
TMR_CLK
0
DIV[15:0]
32
101
STIS[2
：
0]
OVFIF
TRGIF
100
SMSEL[2
：
0]
Slave mode: Suspend mode
In this mode, the counter is controlled by a selected trigger input. The counter starts counting when the
trigger input is high and stops as soon as the trigger input is low.
Figure 14-27
Example of suspend mode
0
1
2
3
4
5
6
7
8
9
COUNTER
A
B
C
D
10
PR[15:0]
TMR_CLK
0
DIV[15:0]
32
101
STIS[2
：
0]
101
SMSEL[2
：
0]
CI1F1
TMR_EN
CNT_CLK
Slave mode: Trigger mode
The counter can start counting on the rising edge of a selected trigger input (TMR_EN=1)
Figure 14-28 Example of trigger mode
0
1
2
3
4
5
COUNTER
PR[15:0]
TMR_CLK
0
DIV[15:0]
32
101
STIS[2
：
0]
110
SMSEL[2
：
0]
CI1F1
TMR_EN
6
7
9
10
A
B
...
30
31
0
1
2
3
4
8
32
OVFIF
