BR3=B_0x0
GPIO port H bit reset register
BR3 | Port H reset I/O pin 3 This bit is write-only. A read to this bit returns the value 0. Access can be protected by GPIOH SEC3. 0 (B_0x0): No action on the corresponding OD3 bit 1 (B_0x1): Reset the corresponding OD3 bit |