ST STM32G0 1 Series - GPIO Port Output Speed Register (Gpiox_Ospeedr); (X = a to F); GPIO Port Pull-Up;Pull-Down Register (Gpiox_Pupdr)

General-purpose I/Os (GPIO) RM0444
242/1390 RM0444 Rev 5
7.4.3 GPIO port output speed register (GPIOx_OSPEEDR)
(x = A to F)
Address offset: 0x08
Reset value: 0x0C00 0000 (for port A)
Reset value: 0x0000 0000 (for other ports)
7.4.4 GPIO port pull-up/pull-down register (GPIOx_PUPDR)
(x = A to F)
Address offset: 0x0C
Reset value: 0x2400 0000 (for port A)
Reset value: 0x0000 0000 (for other ports)
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
OSPEED15
[1:0]
OSPEED14
[1:0]
OSPEED13
[1:0]
OSPEED12
[1:0]
OSPEED11
[1:0]
OSPEED10
[1:0]
OSPEED9
[1:0]
OSPEED8
[1:0]
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15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
OSPEED7
[1:0]
OSPEED6
[1:0]
OSPEED5
[1:0]
OSPEED4
[1:0]
OSPEED3
[1:0]
OSPEED2
[1:0]
OSPEED1
[1:0]
OSPEED0
[1:0]
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Bits 31:0 OSPEED[15:0][1:0]: Port x configuration I/O pin y (y = 15 to 0)
These bits are written by software to configure the I/O output speed.
00: Very low speed
01: Low speed
10: High speed
11: Very high speed
Note: Refer to the device datasheet for the frequency specifications and the power supply
and load conditions for each speed..
The FT_c GPIOs cannot be set to high speed.
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] PUPD12[1:0] PUPD11[1:0] PUPD10[1:0] PUPD9[1:0] PUPD8[1:0]
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1514131211109876543210
PUPD7[1:0] PUPD6[1:0] PUPD5[1:0] PUPD4[1:0] PUPD3[1:0] PUPD2[1:0] PUPD1[1:0] PUPD0[1:0]
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Bits 31:0 PUPD[15:0][1:0]: Port x configuration I/O pin y (y = 15 to 0)
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