ST STM32F31xx

System configuration controller (SYSCFG)
UM1581
438/584
DocID023800 Rev 1
SYSCFG_I2CFastModePlus_I2C1 parameter.
 For all I2C2 pins fast mode plus driving capability can be
enabled only by using SYSCFG_I2CFastModePlus_I2C2
parameter.
21.2.3.8 SYSCFG_ITConfig
Function Name
void SYSCFG_ITConfig ( uint32_t SYSCFG_IT,
FunctionalState NewState)
Function Description
Enables or disables the selected SYSCFG interrupts.
Parameters
 SYSCFG_IT : specifies the SYSCFG interrupt sources to be
enabled or disabled. This parameter can be one of the
following values:
 SYSCFG_IT_IXC : Inexact Interrupt
 SYSCFG_IT_IDC : Input denormal Interrupt
 SYSCFG_IT_OFC : Overflow Interrupt
 SYSCFG_IT_UFC : Underflow Interrupt
 SYSCFG_IT_DZC : Divide-by-zero Interrupt
 SYSCFG_IT_IOC : Invalid operation Interrupt
 NewState : new state of the specified SDADC interrupts.
This parameter can be: ENABLE or DISABLE.
Return values
 None.
Notes
 None.
21.2.3.9 SYSCFG_EXTILineConfig
Function Name
void SYSCFG_EXTILineConfig ( uint8_t
EXTI_PortSourceGPIOx, uint8_t EXTI_PinSourcex)
Function Description
Selects the GPIO pin used as EXTI Line.
Parameters
 EXTI_PortSourceGPIOx : : selects the GPIO port to be used
as source for EXTI lines where x can be (A, B, C, D, E or F).
 EXTI_PinSourcex : specifies the EXTI line to be configured.
This parameter can be EXTI_PinSourcex where x can be
(0..15)
Return values
 None.
Notes
 None.