General purpose and alternate function I/O (GPIO and AFIO) UM0306
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5.2.5 Port bit set/reset register (GPIOx_BSRR) (x=A..E)
Address Offset: 10h
Reset value: 0000 0000h
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
BR15 BR14 BR13 BR12 BR11 BR10 BR9 BR8 BR7 BR6 BR5 BR4 BR3 BR2 BR1 BR0
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BS15 BS14 BS13 BS12 BS11 BS10 BS9 BS8 BS7 BS6 BS5 BS4 BS3 BS2 BS1 BS0
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Bits 31:16
BRx: Reset bit x (x= 0 .. 15)
These bits are write-only and can be accessed in Word mode only.
0: No action on the corresponding ODRx bit
1: Reset the corresponding ODRx bit
Note: If both BSx and BRx are set, BSx has priority.
Bits 15:0
BSx: Set bit x (x= 0 .. 15)
These bits are write-only and can be accessed in Word mode only.
0: No action on the corresponding ODRx bit
1: Set the corresponding ODRx bit