Register Map - Silicon Laboratories EFR32xG21 Wireless Gecko Reference Manual

24.5 Register Map

The offset register address is relative to the registers base address.
Offset Name
0x000 GPIO_PORTA_CTRL
0x004 GPIO_PORTA_MODEL
0x010 GPIO_PORTA_DOUT
0x014 GPIO_PORTA_DIN
0x030 GPIO_PORTB_CTRL
0x034 GPIO_PORTB_MODEL
0x040 GPIO_PORTB_DOUT
0x044 GPIO_PORTB_DIN
0x060 GPIO_PORTC_CTRL
0x064 GPIO_PORTC_MODEL
0x070 GPIO_PORTC_DOUT
0x074 GPIO_PORTC_DIN
0x090 GPIO_PORTD_CTRL
0x094 GPIO_PORTD_MODEL
0x0A0 GPIO_PORTD_DOUT
0x0A4 GPIO_PORTD_DIN
0x300 GPIO_LOCK
0x310 GPIO_GPIOLOCKSTATUS
0x320 GPIO_ABUSALLOC
0x324 GPIO_BBUSALLOC
0x328 GPIO_CDBUSALLOC
0x400 GPIO_EXTIPSELL
0x408 GPIO_EXTIPINSELL
0x410 GPIO_EXTIRISE
0x414 GPIO_EXTIFALL
0x420 GPIO_IF
0x424 GPIO_IEN
0x42C GPIO_EM4WUEN
0x430 GPIO_EM4WUPOL
0x440 GPIO_DBGROUTEPEN
0x444 GPIO_TRACEROUTEPEN
0x450 GPIO_ACMP0_ROUTEEN
0x454 GPIO_ACMP0_ACMPOUT-
ROUTE
0x45C GPIO_ACMP1_ROUTEEN
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Type Description
RW Port control
RW mode low
RW data out
RH data in
RW Port control
RW mode low
RW data out
RH data in
RW Port control
RW mode low
RW data out
RH data in
RW Port control
RW mode low
RW data out
RH data in
W main
RH Lock Status
RW A Bus allocation
RW B Bus allocation
RW CD Bus allocation
RW External Interrupt Port Select Low
RW External Interrupt Pin Select Low
RW External Interrupt Rising Edge Trigger
RW External Interrupt Falling Edge Trigger
RWH INTFLAG Interrupt Flag
RW Interrupt Enable
RW main
RW New Register
RW Debugger Route Pin enable
RW Trace Route Pin Enable
RW ACMP0 pin enable
RW ACMPOUT port/pin select
RW ACMP1 pin enable
Reference Manual
GPIO - General Purpose Input/Output
Rev. 0.4 | 688