ST STM32L0x3 User Manual

RM0367 Rev 7 247/1043
RM0367 General-purpose I/Os (GPIO)
254
9.4.2 GPIO port output type register (GPIOx_OTYPER)
(x = A to E and H)
Address offset: 0x04
Reset value: 0x0000 0000
9.4.3 GPIO port output speed register (GPIOx_OSPEEDR)
(x = A to E and H)
Address offset: 0x08
Reset value: 0x0C00 0000 (for port A)
Reset value: 0x0000 0000 (for the other ports)
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
OT15 OT14 OT13 OT12 OT11 OT10 OT9 OT8 OT7 OT6 OT5 OT4 OT3 OT2 OT1 OT0
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:16 Reserved, must be kept at reset value.
Bits 15:0 OT[15:0]: Port x configuration I/O pin y (y = 15 to 0)
These bits are written by software to configure the I/O output type.
0: Output push-pull (reset state)
1: Output open-drain
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 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: 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..

ST STM32L0x3 Specifications

General

Brand	ST
Model	STM32L0x3
Category	Microcontrollers
Language	English