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General-purpose I/Os (GPIO)
Table 32.
GPIO register map and reset values (continued)
Offset
Register
GPIOx_LCKR
(where x = A..I/)
0x1C
Reset value
GPIOx_AFRL
(where x = A..I/)
0x20
Reset value
0
GPIOx_AFRH
AFRH15[3:0] AFRH14[3:0] AFRH13[3:0] AFRH12[3:0] AFRH11[3:0] AFRH10[3:0]
(where x = A..I/)
0x24
Reset value
0
Refer to
205/1422
Reserved
AFRL7[3:0]
AFRL6[3:0]
AFRL5[3:0]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Table 2 on page 52
for the register boundary addresses.
Doc ID 018909 Rev 4
0
0
0
AFRL4[3:0]
AFRL3[3:0]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
AFRL2[3:0]
AFRL1[3:0]
0
0
0
0
0
0
0
0
0
AFRH9[3:0]
0
0
0
0
0
0
0
0
0
RM0090
0
0
0
0
0
AFRL0[3:0]
0
0
0
0
0
AFRH8[3:0]
0
0
0
0
0
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