AT91M40400-25C ATMEL Corporation, AT91M40400-25C Datasheet - Page 108

• Manufacturer Part Number: AT91M40400-25C
• Description: 16/32-bit Microcontroller, 2.7V to 3.6V Operating Range
• Manufacturer: ATMEL Corporation

WD Clock Mode Register
Name:
Access:
Reset Value:
•
•
•
WDCLKS
108
0
0
1
1
WDCLKS: Clock Selection
HPCV: High Preload Counter Value
Counter is preloaded when watchdog counter is restarted with bits 0 to 11 set (FFF) and bits 12 to 15 equaling HPCV.
CKEY: Clock Access Key
Used only when writing WD_CMR. CKEY is read as 0.
0x06E: Write access in WD_CMR is allowed.
Other value: Write access in WD_CMR is prohibited.
CKEY
31
23
15
---
---
7
0
1
0
1
Clock Selected
MCKI/8
MCKI/32
MCKI/128
MCKI/1024
AT91M40400
30
22
14
WD_CMR
Read/Write
0
---
---
---
6
29
21
13
---
---
5
28
20
12
---
---
4
CKEY
HPCV
27
19
11
---
---
3
26
18
10
---
---
2
25
17
---
---
9
1
WDCLKS
24
16
---
---
8
0