RM0453 Rev 2 411/1454
RM0453 General-purpose I/Os (GPIO)
426
10.4.15 GPIOC pull-up/pull-down register (GPIOC_PUPDR)
Address offset: 0x080C
Reset value: 0x0000 0000
10.4.16 GPIOC input data register (GPIOC_IDR)
Address offset: 0x0810
Reset value: 0x0000 XXXX
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
PUPD15[1:0] PUPD14[1:0] PUPD13[1:0] Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
rw rw rw rw rw rw
1514131211109876543210
Res. Res. PUPD6[1:0] PUPD5[1:0] PUPD4[1:0] PUPD3[1:0] PUPD2[1:0] PUPD1[1:0] PUPD0[1:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:30 PUPD15[1:0]: Port PC15 pull configuration
Bits 29:28 PUPD14[1:0]: Port PC14 pull configuration
Bits 27:26 PUPD13[1:0]: Port PC13 pull configuration
Bits 25:14 Reserved, must be kept at reset value.
Bits 13:12 PUPD6[1:0]: Port PC6 pull configuration
Bits 11:10 PUPD5[1:0]: Port PC5 pull configuration
Bits 9:8 PUPD4[1:0]: Port PC4 pull configuration
Bits 7:6 PUPD3[1:0]: Port PC3 pull configuration
Bits 5:4 PUPD2[1:0]: Port PC2 pull configuration
Bits 3:2 PUPD1[1:0]: Port PC1 pull configuration
Bits 1:0 PUPD0[1:0]: Port PC0 pull configuration
These bits are written by software to configure the I/O pull-up or pull-down.
00: No pull-up, pull-down
01: Pull-up
10: Pull-down
11: Reserved
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
1514131211109876543210
ID15 ID14 ID13 Res. Res. Res. Res. Res. Res. ID6 ID5 ID4 ID3 ID2 ID1 ID0
rrr rrrrrrr
Bits 31:16 Reserved, must be kept at reset value.
Bit 15 ID15: Port PC15 input data bit
Bit 14 ID14: Port PC14 input data bit
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