icm.c File Reference

#include "chip.h"

Functions
void	ICM_Enable (void)
	Enable ICM, the ICM controller is activated.
void	ICM_Disable (void)
	Disable ICM, if a region is active, this region is terminated.
void	ICM_SoftReset (void)
	Resets the ICM controller.
void	ICM_ReComputeHash (uint8_t region)
	Recompute Internal hash.
void	ICM_EnableMonitor (uint8_t region)
	Enable region monitoring for given region.
void	ICM_DisableMonitor (uint8_t region)
	Disable region monitoring for given region.
void	ICM_Configure (uint32_t mode)
	Configures an ICM peripheral with the specified parameters.
void	ICM_EnableIt (uint32_t sources)
	Enables the selected interrupts sources on a ICM peripheral.
void	ICM_DisableIt (uint32_t sources)
	Disables the selected interrupts sources on a ICM peripheral.
uint32_t	ICM_GetIntStatus (void)
	Get the current interrupt status register of the given ICM peripheral.
uint32_t	ICM_GetStatus (void)
	Get the current status register of the given ICM peripheral.
uint32_t	ICM_GetUStatus (void)
	Get the undefined access status register of the given ICM peripheral.
void	ICM_SetDescStartAddress (uint32_t addr)
	Set descriptor area start address register.
void	ICM_SetHashStartAddress (uint32_t addr)
	Set hash area start address register.
void	ICM_SetInitHashValue (uint32_t val)
	Set ICM user initial Hash value register.

Detailed Description

Implementation of True Random Number Generator (ICM)

Function Documentation

ICM_Configure()

void ICM_Configure

(

uint32_t

mode

)

Configures an ICM peripheral with the specified parameters.

Parameters

mode	Desired value for the ICM mode register (see the datasheet).

ICM_DisableIt()

void ICM_DisableIt

(

uint32_t

sources

)

Disables the selected interrupts sources on a ICM peripheral.

Parameters

sources

Bitwise OR of selected interrupt sources.

ICM_DisableMonitor()

void ICM_DisableMonitor

(

uint8_t

region

)

Disable region monitoring for given region.

Parameters

region,When

bit RMDIS[region] is set to one, the monitoring of Region is disabled.

ICM_EnableIt()

void ICM_EnableIt

(

uint32_t

sources

)

Enables the selected interrupts sources on a ICM peripheral.

Parameters

sources

Bitwise OR of selected interrupt sources.

ICM_EnableMonitor()

void ICM_EnableMonitor

(

uint8_t

region

)

Enable region monitoring for given region.

Parameters

region,When

bit RMEN[region] is set to one, the monitoring of Region is activated.

ICM_GetIntStatus()

uint32_t ICM_GetIntStatus

(

void

)

Get the current interrupt status register of the given ICM peripheral.

Returns

ICM status register.

ICM_GetStatus()

uint32_t ICM_GetStatus

(

void

)

Get the current status register of the given ICM peripheral.

Returns

ICM status register.

ICM_GetUStatus()

uint32_t ICM_GetUStatus

(

void

)

Get the undefined access status register of the given ICM peripheral.

Returns

ICM status register.

ICM_ReComputeHash()

void ICM_ReComputeHash

(

uint8_t

region

)

Recompute Internal hash.

Parameters

region,When

REHASH[region] is set to one, the region digest is re-computed.

Note

This bit is only available when Region monitoring is disabled.

ICM_SetDescStartAddress()

void ICM_SetDescStartAddress

(

uint32_t

addr

)

Set descriptor area start address register.

Parameters

addr	start address

Note

The start address is a multiple of the total size of the data structure (64 bytes).

ICM_SetHashStartAddress()

void ICM_SetHashStartAddress

(

uint32_t

addr

)

Set hash area start address register.

Parameters

addr	start address

Note

This field points at the Hash memory location. The address must be a multiple of 128 bytes.

ICM_SetInitHashValue()

void ICM_SetInitHashValue

(

uint32_t

val

)

Set ICM user initial Hash value register.

Parameters

val	Initial Hash Value