PRS - Peripheral Reflex System#

Peripheral Reflex System (PRS) Peripheral API.

This module contains functions to control the PRS peripheral of Silicon Labs 32-bit MCUs and SoCs. The PRS allows configurable, fast, and autonomous communication between peripherals on the MCU or SoC.

Enumerations#

enum

PRS_ChType_t {

prsTypeAsync

prsTypeSync

}

PRS Channel type.

enum

PRS_Edge_TypeDef {

prsEdgeOff

prsEdgePos

prsEdgeNeg

prsEdgeBoth

}

Edge detection type.

enum

PRS_Signal_t {

prsSignalNone = PRS_CH_CTRL_SOURCESEL_NONE | (0x0 << _PRS_CH_CTRL_SIGSEL_SHIFT)

prsSignalSW = PRS_CH_CTRL_SOURCESEL_NONE | (0x1 << _PRS_CH_CTRL_SIGSEL_SHIFT)

prsSignalPRS_CH0 = PRS_PRS_CH0

prsSignalPRS_CH1 = PRS_PRS_CH1

prsSignalPRS_CH2 = PRS_PRS_CH2

prsSignalPRS_CH3 = PRS_PRS_CH3

prsSignalPRS_CH4 = PRS_PRS_CH4

prsSignalPRS_CH5 = PRS_PRS_CH5

prsSignalPRS_CH6 = PRS_PRS_CH6

prsSignalPRS_CH7 = PRS_PRS_CH7

prsSignalPRS_CH8 = PRS_PRS_CH8

prsSignalPRS_CH9 = PRS_PRS_CH9

prsSignalPRS_CH10 = PRS_PRS_CH10

prsSignalPRS_CH11 = PRS_PRS_CH11

prsSignalPRS_CH12 = PRS_PRS_CH12

prsSignalPRS_CH13 = PRS_PRS_CH13

prsSignalPRS_CH14 = PRS_PRS_CH14

prsSignalPRS_CH15 = PRS_PRS_CH15

prsSignalPRS_CH16 = PRS_PRS_CH16

prsSignalPRS_CH17 = PRS_PRS_CH17

prsSignalPRS_CH18 = PRS_PRS_CH18

prsSignalPRS_CH19 = PRS_PRS_CH19

prsSignalPRS_CH20 = PRS_PRS_CH20

prsSignalPRS_CH21 = PRS_PRS_CH21

prsSignalPRS_CH22 = PRS_PRS_CH22

prsSignalPRS_CH23 = PRS_PRS_CH23

prsSignalADC0_SINGLE = PRS_ADC0_SINGLE

prsSignalADC0_SCAN = PRS_ADC0_SCAN

prsSignalADC1_SINGLE = PRS_ADC1_SINGLE

prsSignalADC1_SCAN = PRS_ADC1_SCAN

prsSignalTIMER0_UF = PRS_TIMER0_UF

prsSignalTIMER0_OF = PRS_TIMER0_OF

prsSignalTIMER0_CC0 = PRS_TIMER0_CC0

prsSignalTIMER0_CC1 = PRS_TIMER0_CC1

prsSignalTIMER0_CC2 = PRS_TIMER0_CC2

prsSignalTIMER1_UF = PRS_TIMER1_UF

prsSignalTIMER1_OF = PRS_TIMER1_OF

prsSignalTIMER1_CC0 = PRS_TIMER1_CC0

prsSignalTIMER1_CC1 = PRS_TIMER1_CC1

prsSignalTIMER1_CC2 = PRS_TIMER1_CC2

prsSignalTIMER2_UF = PRS_TIMER2_UF

prsSignalTIMER2_OF = PRS_TIMER2_OF

prsSignalTIMER2_CC0 = PRS_TIMER2_CC0

prsSignalTIMER2_CC1 = PRS_TIMER2_CC1

prsSignalTIMER2_CC2 = PRS_TIMER2_CC2

prsSignalTIMER3_UF = PRS_TIMER3_UF

prsSignalTIMER3_OF = PRS_TIMER3_OF

prsSignalTIMER3_CC0 = PRS_TIMER3_CC0

prsSignalTIMER3_CC1 = PRS_TIMER3_CC1

prsSignalTIMER3_CC2 = PRS_TIMER3_CC2

prsSignalTIMER1_CC3 = PRS_TIMER1_CC3

prsSignalTIMER4_UF = PRS_TIMER4_UF

prsSignalTIMER4_OF = PRS_TIMER4_OF

prsSignalTIMER4_CC0 = PRS_TIMER4_CC0

prsSignalTIMER4_CC1 = PRS_TIMER4_CC1

prsSignalTIMER4_CC2 = PRS_TIMER4_CC2

prsSignalTIMER5_UF = PRS_TIMER5_UF

prsSignalTIMER5_OF = PRS_TIMER5_OF

prsSignalTIMER5_CC0 = PRS_TIMER5_CC0

prsSignalTIMER5_CC1 = PRS_TIMER5_CC1

prsSignalTIMER5_CC2 = PRS_TIMER5_CC2

prsSignalTIMER6_UF = PRS_TIMER6_UF

prsSignalTIMER6_OF = PRS_TIMER6_OF

prsSignalTIMER6_CC0 = PRS_TIMER6_CC0

prsSignalTIMER6_CC1 = PRS_TIMER6_CC1

prsSignalTIMER6_CC2 = PRS_TIMER6_CC2

prsSignalLETIMER0_CH0 = PRS_LETIMER0_CH0

prsSignalLETIMER0_CH1 = PRS_LETIMER0_CH1

prsSignalLETIMER1_CH0 = PRS_LETIMER1_CH0

prsSignalLETIMER1_CH1 = PRS_LETIMER1_CH1

prsSignalPCNT0_TCC = PRS_PCNT0_TCC

prsSignalPCNT0_UFOF = PRS_PCNT0_UFOF

prsSignalPCNT0_DIR = PRS_PCNT0_DIR

prsSignalPCNT1_TCC = PRS_PCNT1_TCC

prsSignalPCNT1_UFOF = PRS_PCNT1_UFOF

prsSignalPCNT1_DIR = PRS_PCNT1_DIR

prsSignalPCNT2_TCC = PRS_PCNT2_TCC

prsSignalPCNT2_UFOF = PRS_PCNT2_UFOF

prsSignalPCNT2_DIR = PRS_PCNT2_DIR

prsSignalCRYOTIMER_PERIOD = PRS_CRYOTIMER_PERIOD

prsSignalRTC_OF = PRS_RTC_OF

prsSignalRTC_COMP0 = PRS_RTC_COMP0

prsSignalRTC_COMP1 = PRS_RTC_COMP1

prsSignalRTC_COMP2 = PRS_RTC_COMP2

prsSignalRTC_COMP3 = PRS_RTC_COMP3

prsSignalRTC_COMP4 = PRS_RTC_COMP4

prsSignalRTC_COMP5 = PRS_RTC_COMP5

prsSignalRTCC_CCV0 = PRS_RTCC_CCV0

prsSignalRTCC_CCV1 = PRS_RTCC_CCV1

prsSignalRTCC_CCV2 = PRS_RTCC_CCV2

prsSignalACMP0_OUT = PRS_ACMP0_OUT

prsSignalACMP1_OUT = PRS_ACMP1_OUT

prsSignalACMP2_OUT = PRS_ACMP2_OUT

prsSignalACMP3_OUT = PRS_ACMP3_OUT

prsSignalVDAC0_CH0 = PRS_VDAC0_CH0

prsSignalVDAC0_CH1 = PRS_VDAC0_CH1

prsSignalVDAC0_OPA0 = PRS_VDAC0_OPA0

prsSignalVDAC0_OPA1 = PRS_VDAC0_OPA1

prsSignalVDAC0_OPA2 = PRS_VDAC0_OPA2

prsSignalVDAC0_OPA3 = PRS_VDAC0_OPA3

prsSignalLESENSE_SCANRES0 = PRS_LESENSE_SCANRES0

prsSignalLESENSE_SCANRES1 = PRS_LESENSE_SCANRES1

prsSignalLESENSE_SCANRES2 = PRS_LESENSE_SCANRES2

prsSignalLESENSE_SCANRES3 = PRS_LESENSE_SCANRES3

prsSignalLESENSE_SCANRES4 = PRS_LESENSE_SCANRES4

prsSignalLESENSE_SCANRES5 = PRS_LESENSE_SCANRES5

prsSignalLESENSE_SCANRES6 = PRS_LESENSE_SCANRES6

prsSignalLESENSE_SCANRES7 = PRS_LESENSE_SCANRES7

prsSignalLESENSE_SCANRES8 = PRS_LESENSE_SCANRES8

prsSignalLESENSE_SCANRES9 = PRS_LESENSE_SCANRES9

prsSignalLESENSE_SCANRES10 = PRS_LESENSE_SCANRES10

prsSignalLESENSE_SCANRES11 = PRS_LESENSE_SCANRES11

prsSignalLESENSE_SCANRES12 = PRS_LESENSE_SCANRES12

prsSignalLESENSE_SCANRES13 = PRS_LESENSE_SCANRES13

prsSignalLESENSE_SCANRES14 = PRS_LESENSE_SCANRES14

prsSignalLESENSE_SCANRES15 = PRS_LESENSE_SCANRES15

prsSignalLESENSE_DEC0 = PRS_LESENSE_DEC0

prsSignalLESENSE_DEC1 = PRS_LESENSE_DEC1

prsSignalLESENSE_DEC2 = PRS_LESENSE_DEC2

prsSignalLESENSE_DECCMP = PRS_LESENSE_DECCMP

prsSignalLESENSE_MEASACT = PRS_LESENSE_MEASACT

prsSignalUSART0_TXC = PRS_USART0_TXC

prsSignalUSART0_RXDATAV = PRS_USART0_RXDATAV

prsSignalUSART0_IRTX = PRS_USART0_IRTX

prsSignalUSART0_RTS = PRS_USART0_RTS

prsSignalUSART0_TX = PRS_USART0_TX

prsSignalUSART0_CS = PRS_USART0_CS

prsSignalUSART1_TXC = PRS_USART1_TXC

prsSignalUSART1_RXDATAV = PRS_USART1_RXDATAV

prsSignalUSART1_RTS = PRS_USART1_RTS

prsSignalUSART1_TX = PRS_USART1_TX

prsSignalUSART1_CS = PRS_USART1_CS

prsSignalUSART2_TXC = PRS_USART2_TXC

prsSignalUSART2_RXDATAV = PRS_USART2_RXDATAV

prsSignalUSART2_IRTX = PRS_USART2_IRTX

prsSignalUSART2_RTS = PRS_USART2_RTS

prsSignalUSART2_TX = PRS_USART2_TX

prsSignalUSART2_CS = PRS_USART2_CS

prsSignalUSART3_TXC = PRS_USART3_TXC

prsSignalUSART3_RXDATAV = PRS_USART3_RXDATAV

prsSignalUSART3_RTS = PRS_USART3_RTS

prsSignalUSART3_TX = PRS_USART3_TX

prsSignalUSART3_CS = PRS_USART3_CS

prsSignalUSART4_TXC = PRS_USART4_TXC

prsSignalUSART4_RXDATAV = PRS_USART4_RXDATAV

prsSignalUSART4_RTS = PRS_USART4_RTS

prsSignalUSART4_TX = PRS_USART4_TX

prsSignalUSART4_CS = PRS_USART4_CS

prsSignalUSART5_TXC = PRS_USART5_TXC

prsSignalUSART5_RXDATAV = PRS_USART5_RXDATAV

prsSignalUSART5_RTS = PRS_USART5_RTS

prsSignalUSART5_TX = PRS_USART5_TX

prsSignalUSART5_CS = PRS_USART5_CS

prsSignalUART0_TXC = PRS_UART0_TXC

prsSignalUART0_RXDATAV = PRS_UART0_RXDATAV

prsSignalUART0_RTS = PRS_UART0_RTS

prsSignalUART0_TX = PRS_UART0_TX

prsSignalUART0_CS = PRS_UART0_CS

prsSignalUART1_TXC = PRS_UART1_TXC

prsSignalUART1_RXDATAV = PRS_UART1_RXDATAV

prsSignalUART1_RTS = PRS_UART1_RTS

prsSignalUART1_TX = PRS_UART1_TX

prsSignalUART1_CS = PRS_UART1_CS

prsSignalUSB_SOF = PRS_USB_SOF

prsSignalUSB_SOFSR = PRS_USB_SOFSR

prsSignalCM4_TXEV = PRS_CM4_TXEV

prsSignalCM4_ICACHEPCHITSOF = PRS_CM4_ICACHEPCHITSOF

prsSignalCM4_ICACHEPCMISSESOF = PRS_CM4_ICACHEPCMISSESOF

prsSignalWTIMER0_UF = PRS_WTIMER0_UF

prsSignalWTIMER0_OF = PRS_WTIMER0_OF

prsSignalWTIMER0_CC0 = PRS_WTIMER0_CC0

prsSignalWTIMER0_CC1 = PRS_WTIMER0_CC1

prsSignalWTIMER0_CC2 = PRS_WTIMER0_CC2

prsSignalWTIMER1_UF = PRS_WTIMER1_UF

prsSignalWTIMER1_OF = PRS_WTIMER1_OF

prsSignalWTIMER1_CC0 = PRS_WTIMER1_CC0

prsSignalWTIMER1_CC1 = PRS_WTIMER1_CC1

prsSignalWTIMER1_CC2 = PRS_WTIMER1_CC2

prsSignalWTIMER1_CC3 = PRS_WTIMER1_CC3

prsSignalWTIMER2_UF = PRS_WTIMER2_UF

prsSignalWTIMER2_OF = PRS_WTIMER2_OF

prsSignalWTIMER2_CC0 = PRS_WTIMER2_CC0

prsSignalWTIMER2_CC1 = PRS_WTIMER2_CC1

prsSignalWTIMER2_CC2 = PRS_WTIMER2_CC2

prsSignalWTIMER3_UF = PRS_WTIMER3_UF

prsSignalWTIMER3_OF = PRS_WTIMER3_OF

prsSignalWTIMER3_CC0 = PRS_WTIMER3_CC0

prsSignalWTIMER3_CC1 = PRS_WTIMER3_CC1

prsSignalWTIMER3_CC2 = PRS_WTIMER3_CC2

prsSignalGPIO_PIN0 = PRS_GPIO_PIN0

prsSignalGPIO_PIN1 = PRS_GPIO_PIN1

prsSignalGPIO_PIN2 = PRS_GPIO_PIN2

prsSignalGPIO_PIN3 = PRS_GPIO_PIN3

prsSignalGPIO_PIN4 = PRS_GPIO_PIN4

prsSignalGPIO_PIN5 = PRS_GPIO_PIN5

prsSignalGPIO_PIN6 = PRS_GPIO_PIN6

prsSignalGPIO_PIN7 = PRS_GPIO_PIN7

prsSignalGPIO_PIN8 = PRS_GPIO_PIN8

prsSignalGPIO_PIN9 = PRS_GPIO_PIN9

prsSignalGPIO_PIN10 = PRS_GPIO_PIN10

prsSignalGPIO_PIN11 = PRS_GPIO_PIN11

prsSignalGPIO_PIN12 = PRS_GPIO_PIN12

prsSignalGPIO_PIN13 = PRS_GPIO_PIN13

prsSignalGPIO_PIN14 = PRS_GPIO_PIN14

prsSignalGPIO_PIN15 = PRS_GPIO_PIN15

}

PRS Signal.

Functions#

void

PRS_LevelSet(uint32_t level, uint32_t mask)

Set level control bit for one or more channels.

uint32_t

PRS_LevelGet(void)

Get level control bit for all channels.

uint32_t

PRS_Values(PRS_ChType_t type)

Get the PRS channel values for all channels.

bool

PRS_ChannelValue(unsigned int ch, PRS_ChType_t type)

Get the PRS channel value for a single channel.

void

PRS_PulseTrigger(uint32_t channels)

Trigger a high pulse (one HFPERCLK) for one or more channels.

void

PRS_ChannelLevelSet(unsigned int ch, bool level)

Set the PRS channel level for one asynchronous PRS channel.

void

PRS_ChannelPulse(unsigned int ch)

Trigger a pulse on one PRS channel.

void

PRS_SourceSignalSet(unsigned int ch, uint32_t source, uint32_t signal, PRS_Edge_TypeDef edge)

Set a source and signal for a channel.

void

PRS_SourceAsyncSignalSet(unsigned int ch, uint32_t source, uint32_t signal)

Set the source and asynchronous signal for a channel.

void

PRS_GpioOutputLocation(unsigned int ch, unsigned int location)

Send the output of a PRS channel to a GPIO pin.

int

PRS_GetFreeChannel(PRS_ChType_t type)

Search for the first free PRS channel.

void

PRS_Reset(void)

Reset all PRS channels.

void

PRS_ConnectSignal(unsigned int ch, PRS_ChType_t type, PRS_Signal_t signal)

Connect a PRS signal to a channel.

Macros#

#define

PRS_SYNC_CHAN_COUNT PRS_CHAN_COUNT

PRS Synchronous channel count.

#define

PRS_ASYNC_CHAN_COUNT PRS_CHAN_COUNT

PRS Asynchronous channel count.

#define

PRS_ASYNC_SUPPORTED 1

PRS asynchronous support.

Enumeration Documentation#

PRS_ChType_t#

PRS_ChType_t

PRS Channel type.

Enumerator
prsTypeAsync	Asynchronous channel type.
prsTypeSync	Synchronous channel type.

Definition at line 102 of file platform/emlib/inc/em_prs.h

PRS_Edge_TypeDef#

PRS_Edge_TypeDef

Edge detection type.

Enumerator
prsEdgeOff	Leave signal as is.
prsEdgePos	Generate pulses on positive edge.
prsEdgeNeg	Generate pulses on negative edge.
prsEdgeBoth	Generate pulses on both edges.

Definition at line 108 of file platform/emlib/inc/em_prs.h

PRS_Signal_t#

PRS_Signal_t

PRS Signal.

Enumerator
prsSignalNone	No Signal.
prsSignalSW	Software-reserved Signal.
prsSignalPRS_CH0	PRS_CH0 signal.
prsSignalPRS_CH1	PRS_CH1 signal.
prsSignalPRS_CH2	PRS_CH2 signal.
prsSignalPRS_CH3	PRS_CH3 signal.
prsSignalPRS_CH4	PRS_CH4 signal.
prsSignalPRS_CH5	PRS_CH5 signal.
prsSignalPRS_CH6	PRS_CH6 signal.
prsSignalPRS_CH7	PRS_CH7 signal.
prsSignalPRS_CH8	PRS_CH8 signal.
prsSignalPRS_CH9	PRS_CH9 signal.
prsSignalPRS_CH10	PRS_CH10 signal.
prsSignalPRS_CH11	PRS_CH11 signal.
prsSignalPRS_CH12	PRS_CH12 signal.
prsSignalPRS_CH13	PRS_CH13 signal.
prsSignalPRS_CH14	PRS_CH14 signal.
prsSignalPRS_CH15	PRS_CH15 signal.
prsSignalPRS_CH16	PRS_CH16 signal.
prsSignalPRS_CH17	PRS_CH17 signal.
prsSignalPRS_CH18	PRS_CH18 signal.
prsSignalPRS_CH19	PRS_CH19 signal.
prsSignalPRS_CH20	PRS_CH20 signal.
prsSignalPRS_CH21	PRS_CH21 signal.
prsSignalPRS_CH22	PRS_CH22 signal.
prsSignalPRS_CH23	PRS_CH23 signal.
prsSignalADC0_SINGLE	ADC0_SINGLE signal.
prsSignalADC0_SCAN	ADC0_SCAN signal.
prsSignalADC1_SINGLE	ADC1_SINGLE signal.
prsSignalADC1_SCAN	ADC1_SCAN signal.
prsSignalTIMER0_UF	TIMER0 underflow Signal.
prsSignalTIMER0_OF	TIMER0 overflow Signal.
prsSignalTIMER0_CC0	TIMER0 capture/compare channel 0 Signal.
prsSignalTIMER0_CC1	TIMER0 capture/compare channel 1 Signal.
prsSignalTIMER0_CC2	TIMER0 capture/compare channel 2 Signal.
prsSignalTIMER1_UF	TIMER1 underflow Signal.
prsSignalTIMER1_OF	TIMER1 overflow Signal.
prsSignalTIMER1_CC0	TIMER1 capture/compare channel 0 Signal.
prsSignalTIMER1_CC1	TIMER1 capture/compare channel 1 Signal.
prsSignalTIMER1_CC2	TIMER1 capture/compare channel 2 Signal.
prsSignalTIMER2_UF	TIMER2 underflow Signal.
prsSignalTIMER2_OF	TIMER2 overflow Signal.
prsSignalTIMER2_CC0	TIMER2 capture/compare channel 0 Signal.
prsSignalTIMER2_CC1	TIMER2 capture/compare channel 1 Signal.
prsSignalTIMER2_CC2	TIMER2 capture/compare channel 2 Signal.
prsSignalTIMER3_UF	TIMER3 underflow Signal.
prsSignalTIMER3_OF	TIMER3 overflow Signal.
prsSignalTIMER3_CC0	TIMER3 capture/compare channel 0 Signal.
prsSignalTIMER3_CC1	TIMER3 capture/compare channel 1 Signal.
prsSignalTIMER3_CC2	TIMER3 capture/compare channel 2 Signal.
prsSignalTIMER1_CC3	TIMER3 capture/compare channel 3 Signal.
prsSignalTIMER4_UF	TIMER4 underflow Signal.
prsSignalTIMER4_OF	TIMER4 overflow Signal.
prsSignalTIMER4_CC0	TIMER4 capture/compare channel 0 Signal.
prsSignalTIMER4_CC1	TIMER4 capture/compare channel 1 Signal.
prsSignalTIMER4_CC2	TIMER4 capture/compare channel 2 Signal.
prsSignalTIMER5_UF	TIMER5 underflow Signal.
prsSignalTIMER5_OF	TIMER5 overflow Signal.
prsSignalTIMER5_CC0	TIMER5 capture/compare channel 0 Signal.
prsSignalTIMER5_CC1	TIMER5 capture/compare channel 1 Signal.
prsSignalTIMER5_CC2	TIMER5 capture/compare channel 2 Signal.
prsSignalTIMER6_UF	TIMER6 underflow Signal.
prsSignalTIMER6_OF	TIMER6 overflow Signal.
prsSignalTIMER6_CC0	TIMER6 capture/compare channel 0 Signal.
prsSignalTIMER6_CC1	TIMER6 capture/compare channel 1 Signal.
prsSignalTIMER6_CC2	TIMER6 capture/compare channel 2 Signal.
prsSignalLETIMER0_CH0	LETIMER0 channel 0 Signal.
prsSignalLETIMER0_CH1	LETIMER0 channel 1 Signal.
prsSignalLETIMER1_CH0	LETIMER1 channel 0 Signal.
prsSignalLETIMER1_CH1	LETIMER1 channel 1 Signal.
prsSignalPCNT0_TCC	PCNT0_TCC Signal.
prsSignalPCNT0_UFOF	PCNT0_TCC Signal.
prsSignalPCNT0_DIR	PCNT0_TCC Signal.
prsSignalPCNT1_TCC	PCNT1_TCC Signal.
prsSignalPCNT1_UFOF	PCNT1_TCC Signal.
prsSignalPCNT1_DIR	PCNT1_TCC Signal.
prsSignalPCNT2_TCC	PCNT2_TCC Signal.
prsSignalPCNT2_UFOF	PCNT2_TCC Signal.
prsSignalPCNT2_DIR	PCNT2_TCC Signal.
prsSignalCRYOTIMER_PERIOD	CRYOTIMER_PERIOD Signal.
prsSignalRTC_OF	RTC_OF signal.
prsSignalRTC_COMP0	RTC_COMP0 signal.
prsSignalRTC_COMP1	RTC_COMP1 signal.
prsSignalRTC_COMP2	RTC_COMP2 signal.
prsSignalRTC_COMP3	RTC_COMP3 signal.
prsSignalRTC_COMP4	RTC_COMP4 signal.
prsSignalRTC_COMP5	RTC_COMP5 signal.
prsSignalRTCC_CCV0	RTCC capture/compare channel 0 Signal.
prsSignalRTCC_CCV1	RTCC capture/compare channel 1 Signal.
prsSignalRTCC_CCV2	RTCC capture/compare channel 2 Signal.
prsSignalACMP0_OUT	ACMP0 Signal.
prsSignalACMP1_OUT	ACMP1 output Signal.
prsSignalACMP2_OUT	ACMP2 output Signal.
prsSignalACMP3_OUT	ACMP3 output Signal.
prsSignalVDAC0_CH0	VDAC0_CH0 Signal.
prsSignalVDAC0_CH1	VDAC0_CH1 Signal.
prsSignalVDAC0_OPA0	VDAC0_OPA0 Signal.
prsSignalVDAC0_OPA1	VDAC0_OPA1 Signal.
prsSignalVDAC0_OPA2	VDAC0_OPA2 Signal.
prsSignalVDAC0_OPA3	VDAC0_OPA3 Signal.
prsSignalLESENSE_SCANRES0	LESENSE_SCANRES0 Signal.
prsSignalLESENSE_SCANRES1	LESENSE_SCANRES1 Signal.
prsSignalLESENSE_SCANRES2	LESENSE_SCANRES2 Signal.
prsSignalLESENSE_SCANRES3	LESENSE_SCANRES3 Signal.
prsSignalLESENSE_SCANRES4	LESENSE_SCANRES4 Signal.
prsSignalLESENSE_SCANRES5	LESENSE_SCANRES5 Signal.
prsSignalLESENSE_SCANRES6	LESENSE_SCANRES6 Signal.
prsSignalLESENSE_SCANRES7	LESENSE_SCANRES7 Signal.
prsSignalLESENSE_SCANRES8	LESENSE_SCANRES8 Signal.
prsSignalLESENSE_SCANRES9	LESENSE_SCANRES9 Signal.
prsSignalLESENSE_SCANRES10	LESENSE_SCANRES10 Signal.
prsSignalLESENSE_SCANRES11	LESENSE_SCANRES11 Signal.
prsSignalLESENSE_SCANRES12	LESENSE_SCANRES12 Signal.
prsSignalLESENSE_SCANRES13	LESENSE_SCANRES13 Signal.
prsSignalLESENSE_SCANRES14	LESENSE_SCANRES14 Signal.
prsSignalLESENSE_SCANRES15	LESENSE_SCANRES15 Signal.
prsSignalLESENSE_DEC0	LESENSE_DEC0 Signal.
prsSignalLESENSE_DEC1	LESENSE_DEC1 Signal.
prsSignalLESENSE_DEC2	LESENSE_DEC2 Signal.
prsSignalLESENSE_DECCMP	LESENSE_DECCMP Signal.
prsSignalLESENSE_MEASACT	LESENSE_MEASACT Signal.
prsSignalUSART0_TXC	USART0 TX complete Signal.
prsSignalUSART0_RXDATAV	USART0 RX data available Signal.
prsSignalUSART0_IRTX	USART0 IR TX Signal.
prsSignalUSART0_RTS	USART0 RTS Signal.
prsSignalUSART0_TX	USART0 TX Signal.
prsSignalUSART0_CS	USART0 chip select Signal.
prsSignalUSART1_TXC	USART1 TX complete Signal.
prsSignalUSART1_RXDATAV	USART1 RX data available Signal.
prsSignalUSART1_RTS	USART1 RTS Signal.
prsSignalUSART1_TX	USART1 TX Signal.
prsSignalUSART1_CS	USART1 chip select Signal.
prsSignalUSART2_TXC	USART2 TX complete Signal.
prsSignalUSART2_RXDATAV	USART2 RX data available Signal.
prsSignalUSART2_IRTX	USART2 IR TX Signal.
prsSignalUSART2_RTS	USART2 RTS Signal.
prsSignalUSART2_TX	USART2 TX Signal.
prsSignalUSART2_CS	USART2 chip select Signal.
prsSignalUSART3_TXC	USART3 TX complete Signal.
prsSignalUSART3_RXDATAV	USART3 RX data available Signal.
prsSignalUSART3_RTS	USART3 RTS Signal.
prsSignalUSART3_TX	USART3 TX Signal.
prsSignalUSART3_CS	USART3 chip select Signal.
prsSignalUSART4_TXC	USART4 TX complete Signal.
prsSignalUSART4_RXDATAV	USART4 RX data available Signal.
prsSignalUSART4_RTS	USART4 RTS Signal.
prsSignalUSART4_TX	USART4 TX Signal.
prsSignalUSART4_CS	USART4 chip select Signal.
prsSignalUSART5_TXC	USART5 TX complete Signal.
prsSignalUSART5_RXDATAV	USART5 RX data available Signal.
prsSignalUSART5_RTS	USART5 RTS Signal.
prsSignalUSART5_TX	USART5 TX Signal.
prsSignalUSART5_CS	USART5 chip select Signal.
prsSignalUART0_TXC	UART0 TX complete Signal.
prsSignalUART0_RXDATAV	UART0 RX data available Signal.
prsSignalUART0_RTS	UART0 RTS Signal.
prsSignalUART0_TX	UART0 TX Signal.
prsSignalUART0_CS	UART0 chip select Signal.
prsSignalUART1_TXC	UART1 TX complete Signal.
prsSignalUART1_RXDATAV	UART1 RX data available Signal.
prsSignalUART1_RTS	UART1 RTS Signal.
prsSignalUART1_TX	UART1 RX Signal.
prsSignalUART1_CS	UART1 chip select Signal.
prsSignalUSB_SOF	USB_SOF Signal.
prsSignalUSB_SOFSR	USB_SOFSR Signal.
prsSignalCM4_TXEV	TXEV Signal.
prsSignalCM4_ICACHEPCHITSOF	ICACHEPCHITSOF Signal.
prsSignalCM4_ICACHEPCMISSESOF	ICACHEPCMISSESOF Signal.
prsSignalWTIMER0_UF	WTIMER0_UF Signal.
prsSignalWTIMER0_OF	WTIMER0_OF Signal.
prsSignalWTIMER0_CC0	WTIMER0_CC0 Signal.
prsSignalWTIMER0_CC1	WTIMER0_CC1 Signal.
prsSignalWTIMER0_CC2	WTIMER0_CC2 Signal.
prsSignalWTIMER1_UF	WTIMER1_UF Signal.
prsSignalWTIMER1_OF	WTIMER1_OF Signal.
prsSignalWTIMER1_CC0	WTIMER1_CC0 Signal.
prsSignalWTIMER1_CC1	WTIMER1_CC1 Signal.
prsSignalWTIMER1_CC2	WTIMER1_CC2 Signal.
prsSignalWTIMER1_CC3	WTIMER1_CC3 Signal.
prsSignalWTIMER2_UF	WTIMER2_UF Signal.
prsSignalWTIMER2_OF	WTIMER2_OF Signal.
prsSignalWTIMER2_CC0	WTIMER2_CC0 Signal.
prsSignalWTIMER2_CC1	WTIMER2_CC1 Signal.
prsSignalWTIMER2_CC2	WTIMER2_CC2 Signal.
prsSignalWTIMER3_UF	WTIMER3_UF Signal.
prsSignalWTIMER3_OF	WTIMER3_OF Signal.
prsSignalWTIMER3_CC0	WTIMER3_CC0 Signal.
prsSignalWTIMER3_CC1	WTIMER3_CC1 Signal.
prsSignalWTIMER3_CC2	WTIMER3_CC2 Signal.
prsSignalGPIO_PIN0	GPIO Pin 0 Signal.
prsSignalGPIO_PIN1	GPIO Pin 1 Signal.
prsSignalGPIO_PIN2	GPIO Pin 2 Signal.
prsSignalGPIO_PIN3	GPIO Pin 3 Signal.
prsSignalGPIO_PIN4	GPIO Pin 4 Signal.
prsSignalGPIO_PIN5	GPIO Pin 5 Signal.
prsSignalGPIO_PIN6	GPIO Pin 6 Signal.
prsSignalGPIO_PIN7	GPIO Pin 7 Signal.
prsSignalGPIO_PIN8	GPIO Pin 8 Signal.
prsSignalGPIO_PIN9	GPIO Pin 9 Signal.
prsSignalGPIO_PIN10	GPIO Pin 10 Signal.
prsSignalGPIO_PIN11	GPIO Pin 11 Signal.
prsSignalGPIO_PIN12	GPIO Pin 12 Signal.
prsSignalGPIO_PIN13	GPIO Pin 13 Signal.
prsSignalGPIO_PIN14	GPIO Pin 14 Signal.
prsSignalGPIO_PIN15	GPIO Pin 15 Signal.

Definition at line 138 of file platform/emlib/inc/em_prs.h

Function Documentation#

PRS_LevelSet#

void PRS_LevelSet (uint32_t level, uint32_t mask)

Set level control bit for one or more channels.

Parameters

[in]	level	Level to use for channels indicated by `mask`. Use logical OR combination of PRS_SWLEVEL_CHnLEVEL defines for channels to set high level, otherwise 0.
[in]	mask	Mask indicating which channels to set level for. Use logical OR combination of PRS_SWLEVEL_CHnLEVEL defines.

The level value for a channel is XORed with both the pulse possibly issued by PRS_PulseTrigger() and the PRS input signal selected for the channel(s).

Definition at line 1010 of file platform/emlib/inc/em_prs.h

PRS_LevelGet#

uint32_t PRS_LevelGet (void)

Get level control bit for all channels.

Parameters

N/A

Returns

The current software level configuration.

Definition at line 1026 of file platform/emlib/inc/em_prs.h

PRS_Values#

uint32_t PRS_Values (PRS_ChType_t type)

Get the PRS channel values for all channels.

Parameters

[in]

type

PRS channel type. This can be either prsTypeAsync or prsTypeSync.

Returns

The current PRS channel output values for all channels as a bitset.

Definition at line 1047 of file platform/emlib/inc/em_prs.h

PRS_ChannelValue#

bool PRS_ChannelValue (unsigned int ch, PRS_ChType_t type)

Get the PRS channel value for a single channel.

Parameters

[in]	ch	PRS channel number.
[in]	type	PRS channel type. This can be either prsTypeAsync or prsTypeSync.

Returns

The current PRS channel output value. This is either 0 or 1.

Definition at line 1075 of file platform/emlib/inc/em_prs.h

PRS_PulseTrigger#

void PRS_PulseTrigger (uint32_t channels)

Trigger a high pulse (one HFPERCLK) for one or more channels.

Parameters

[in]

channels

Logical ORed combination of channels to trigger a pulse for. Use PRS_SWPULSE_CHnPULSE defines.

Setting a bit for a channel causes the bit in the register to remain high for one HFPERCLK cycle. Pulse is XORed with both the corresponding bit in PRS SWLEVEL register and the PRS input signal selected for the channel(s).

Definition at line 1095 of file platform/emlib/inc/em_prs.h

PRS_ChannelLevelSet#

void PRS_ChannelLevelSet (unsigned int ch, bool level)

Set the PRS channel level for one asynchronous PRS channel.

Parameters

[in]	ch	PRS channel number.
[in]	level	true to set the level high (1) and false to set the level low (0).

Definition at line 1114 of file platform/emlib/inc/em_prs.h

PRS_ChannelPulse#

void PRS_ChannelPulse (unsigned int ch)

Trigger a pulse on one PRS channel.

Parameters

[in]

PRS channel number.

Definition at line 1126 of file platform/emlib/inc/em_prs.h

PRS_SourceSignalSet#

void PRS_SourceSignalSet (unsigned int ch, uint32_t source, uint32_t signal, PRS_Edge_TypeDef edge)

Set a source and signal for a channel.

Parameters

[in]	ch	A channel to define the signal and source for.
[in]	source	A source to select for the channel. Use one of PRS_CH_CTRL_SOURCESEL_x defines.
[in]	signal	A signal (for selected `source`) to use. Use one of PRS_CH_CTRL_SIGSEL_x defines.
[in]	edge	An edge (for selected source/signal) to generate the pulse for.

Definition at line 323 of file platform/emlib/src/em_prs.c

PRS_SourceAsyncSignalSet#

void PRS_SourceAsyncSignalSet (unsigned int ch, uint32_t source, uint32_t signal)

Set the source and asynchronous signal for a channel.

Parameters

[in]	ch	A channel to define the source and asynchronous signal for.
[in]	source	A source to select for the channel. Use one of PRS_CH_CTRL_SOURCESEL_x defines.
[in]	signal	An asynchronous signal (for selected `source`) to use. Use one of the PRS_CH_CTRL_SIGSEL_x defines that support asynchronous operation.

Asynchronous reflexes are not clocked on HFPERCLK and can be used even in EM2/EM3. There is a limitation to reflexes operating in asynchronous mode in that they can only be used by a subset of the reflex consumers. See the PRS chapter in the reference manual for the complete list of supported asynchronous signals and consumers.

Note

This function is not supported on EFM32GxxxFyyy parts. In asynchronous mode, the edge detector only works in EM0 and should not be used. The EDSEL parameter in PRS_CHx_CTRL register is set to 0 (OFF) by default.

Definition at line 370 of file platform/emlib/src/em_prs.c

PRS_GpioOutputLocation#

void PRS_GpioOutputLocation (unsigned int ch, unsigned int location)

Send the output of a PRS channel to a GPIO pin.

Parameters

[in]	ch	PRS channel number.
[in]	location	PRS routing location.

This function is used to send the output of a PRS channel to a GPIO pin. Note that there are certain restrictions to where a PRS channel can be routed. Consult the datasheet of the device to see if a channel can be routed to the requested GPIO pin.

Definition at line 395 of file platform/emlib/src/em_prs.c

PRS_GetFreeChannel#

int PRS_GetFreeChannel (PRS_ChType_t type)

Search for the first free PRS channel.

Parameters

[in]

type

PRS channel type. This can be either prsTypeAsync or prsTypeSync.

Returns

Channel number >= 0 if an unused PRS channel was found. If no free PRS channel was found then -1 is returned.

Definition at line 428 of file platform/emlib/src/em_prs.c

PRS_Reset#

void PRS_Reset (void)

Reset all PRS channels.

Parameters

N/A

This function will reset all the PRS channel configuration.

Definition at line 457 of file platform/emlib/src/em_prs.c

PRS_ConnectSignal#

void PRS_ConnectSignal (unsigned int ch, PRS_ChType_t type, PRS_Signal_t signal)

Connect a PRS signal to a channel.

Parameters

[in]	ch	PRS channel number.
[in]	type	PRS channel type. This can be either prsTypeAsync or prsTypeSync.
[in]	signal	This is the PRS signal that should be placed on the channel.

This function will make the PRS signal available on the specific channel. Only a single PRS signal can be connected to any given channel.

Definition at line 495 of file platform/emlib/src/em_prs.c

Macro Definition Documentation#

PRS_SYNC_CHAN_COUNT#

#define PRS_SYNC_CHAN_COUNT

Value:

PRS_CHAN_COUNT

PRS Synchronous channel count.

Definition at line 67 of file platform/emlib/inc/em_prs.h

PRS_ASYNC_CHAN_COUNT#

#define PRS_ASYNC_CHAN_COUNT

Value:

PRS_CHAN_COUNT

PRS Asynchronous channel count.

Definition at line 69 of file platform/emlib/inc/em_prs.h

PRS_ASYNC_SUPPORTED#

#define PRS_ASYNC_SUPPORTED

Value:

PRS asynchronous support.

Definition at line 74 of file platform/emlib/inc/em_prs.h