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ST ST32M103 Series - Status Register (WWDG_SR)

ST ST32M103 Series
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UM0306 Window watchdog (WWDG)
149/519
11.6.3 Status register (WWDG_SR)
Address Offset: 08h
Reset Value: 0000 0000 (00h)
Bits 8:7
WDGTB[1:0]: Timer Base
The time base of the prescaler can be modified as follows:
00: CK Counter Clock (PCLK1 div 4096) div 1
01: CK Counter Clock (PCLK1 div 4096) div 2
10: CK Counter Clock (PCLK1 div 4096) div 4
11: CK Counter Clock (PCLK1 div 4096) div 8
Bits 6:0
W[6:0] 7-bit window value
These bits contain the window value to be compared to the downcounter.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved
1514131211109876543210
Reserved EWIF
rc_w0
Bit 31:1 Reserved
Bit 0
EWIF: Early Wakeup Interrupt Flag
This bit is set by hardware when the counter has reached the value 40h. It
must be cleared by software by writing ‘0’. A write of ‘1’ has no effect. This bit
is also set if the interrupt is not enabled.
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