Registers In GPIOB 0x48000400

RegisterOffset gd32e230 gd32e231
CTL0x0000
OMODE0x0004
OSPD0x0008
PUD0x000C
ISTAT0x0010
OCTL0x0014
BOP0x0018
LOCK0x001C
AFSEL00x0020
AFSEL10x0024
BC0x0028
TG0x002C