Window watchdog WWDG 0x0 0x400 registers CR CR Control register 0x0 0x20 read-write 0x7F WDGA Activation bit 7 1 T 7-bit counter (MSB to LSB) 0 7 CFR CFR Configuration register 0x4 0x20 read-write 0x7F EWI Early wakeup interrupt 9 1 WDGTB1 Timer base 8 1 WDGTB0 Timer base 7 1 W 7-bit window value 0 7 SR SR Status register 0x8 0x20 read-write 0x00 EWIF Early wakeup interrupt flag 0 1