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AT32F413
Series Reference Manual
2022.06.27
Page 254
Rev 2.00
15.5.2 Configuration register (WWDT_CFG)
Bit
Register
Reset value
Type
Description
Bit 31: 10 Reserved
0x000000
resd
Kept at its default value.
Bit 9
RLDIEN
0x0
rw
Reload counter interrupt
0: Disabled
1: Enabled
Bit 8: 7
DIV
0x0
rw
Clock division value
00: PCLK1 divided by 4096
01: PCLK1 divided by 8192
10: PCLK1 divided by 16384
11: PCLK1 divided by 32768
Bit 6: 0
WIN
0x7F
rw
Window value
if the counter is reloaded while its value is greater than the
window register value, a reset is generated. The counter
must be reloaded between 0x40 and WIN[6: 0].
15.5.3 Status register (WWDT_STS)
Bit
Register
Reset value
Type
Description
Bit 31: 1
Reserved
0x0000 0000 resd
Kept at its default value.
Bit 0
RLDF
0x0
rw0c
Reload counter interrupt flag
This flag is set when the downcounter reaches 0x40.
’This bit is set by hardware and cleared by software.