ST STM32L4x6 User Manual

DocID024597 Rev 3 265/1693
RM0351 General-purpose I/Os (GPIO)
272
7.4.3 GPIO port output speed register (GPIOx_OSPEEDR)
(x = A..H)
Address offset: 0x08
Reset value:
• 0x0C00 0000 for port A
• 0x0000 0000 for the other ports
7.4.4 GPIO port pull-up/pull-down register (GPIOx_PUPDR)
(x = A..H)
Address offset: 0x0C
Reset values:
• 0x1210 0000 for port A
• 0x6400 0000 for port B
• 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]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
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]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 2y+1:2y OSPEEDy[1:0]: Port x configuration bits (y = 0..15)
These bits are written by software to configure the I/O output speed.
00: Low speed
01: Medium 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.
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]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
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]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 2y+1:2y PUPDy[1:0]: Port x configuration bits (y = 0..15)
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

ST STM32L4x6 Specifications

General

Brand	ST
Model	STM32L4x6
Category	Microcontrollers
Language	English