SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 253

• Manufacturer Part Number: SAF-C164SM
• Description: 16-Bit CMOS Microcontroller
• Manufacturer: Infineon Technologies

Table 13-1
WDTIN) for the watchdog time which can be achieved using a certain CPU clock.
Table 13-1
CPU Clock
f
12 MHz
16 MHz
20 MHz
25 MHz
33 MHz
Note: For safety reasons, the user is advised to rewrite WDTCON each time before the
User’s Manual
CPU
watchdog timer is serviced.
lists the possible ranges (depending on the prescaler bits WDTPRE and
Prescaler
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Watchdog Time Ranges
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
WDT
/ 2
/ 4
/ 128
/ 256
/ 2
/ 4
/ 128
/ 256
/ 2
/ 4
/ 128
/ 256
/ 2
/ 4
/ 128
/ 256
/ 2
/ 4
/ 128
/ 256
Reload Value in WDTREL
FF
42.67
85.33
2.73
5.46
32.00
64.00
2.05
4.10
25.60
51.20
1.64
3.28
20.48
40.96
1.31
2.62
15.52
31.03
0.99
1.99
13-5
H
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
s
s
s
s
s
s
s
s
s
s
7F
5.50
11.01
352.3
704.5
4.13
8.26
264.2
528.4
3.30
6.61
211.4
422.7
2.64
5.28
169.1
338.2
2.00
4.00
128.1
256.2
H
Watchdog Timer (WDT)
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
C164CM/C164SM
00
10.92
699.1
1398
8.19
16.38
524.3
1049
6.55
13.11
419.4
838.9
5.24
10.49
335.5
671.1
3.97
7.94
254.2
508.4
21.85
Derivatives
V1.0, 2002-02
H
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms