SDIO Library
The SD/SDIO MMC card host interface (SDIO) provides an interface between the APB2 peripheral bus and MultiMediaCards (MMCs), SD memory cards, SDIO cards and CE-ATA devices. It is available only for the Cortex M4 devices.
The MultiMediaCard/SD bus connects cards to the controller.
The SDIO features include the following :
- Full compliance with MultiMediaCard System Specification Version 4.2 Card support for three different databus modes: 1-bit (default), 4-bit and 8-bit.
- Full compatibility with previous versions of MultiMediaCards (forward compatibility).
- Full compliance with SD Memory Card Specifications Version 2.0.
- Full compliance with SD I/O Card Specification Version 2.0: card support for two different databus modes: 1-bit (default) and 4-bit.
- Full support of the CE-ATA features (full compliance with CE-ATA digital protocol Rev1.1).
- Data transfer up to 48 MHz for the 8 bit mode.
- Data and command output enable signals to control external bidirectional drivers.
Library Routines
SDIO_Reset
| Prototype |
void SDIO_Reset();
|
| Description |
Deinitializes the SD I/O peripheral registers to their default reset values.
|
| Parameters |
None.
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_Init
| Prototype |
void SDIO_Init(unsigned long cfg, char clockDiv, const Module_Struct *module);
|
| Description |
Initializes the SD I/O peripheral according to the specified parameters.
|
| Parameters |
cfg : Configuration paramerer. Valid values :
| Value |
Description |
| _SDIO_CFG_POWER_SAVE_DISABLE |
SD I/O Clock output is disabled when the bus is idle. |
| _SDIO_CFG_POWER_SAVE_ENABLE |
SD I/O Clock output is enabled when the bus is idle. |
| _SDIO_CFG_1_WIDE_BUS_MODE |
SD I/O bus width. |
| _SDIO_CFG_4_WIDE_BUS_MODE |
SD I/O bus width. |
| _SDIO_CFG_8_WIDE_BUS_MODE |
SD I/O bus width. |
| _SDIO_CFG_CLOCK_BYPASS_DISABLE |
SD I/O Clock divider bypass is disabled. |
| _SDIO_CFG_CLOCK_BYPASS_ENABLE |
SD I/O Clock divider bypass is enabled. |
| _SDIO_CFG_CLOCK_RISING_EDGE |
Bit capture is made on rising edge. |
| _SDIO_CFG_CLOCK_FALING_EDGE |
Bit capture is made on falling edge. |
| _SDIO_CFG_HW_FLOW_DISABLE |
SD I/O hardware flow control is disabled. |
| _SDIO_CFG_HW_FLOW_ENABLE |
SD I/O hardware flow control is enabled. |
clockDiv: Specifies the divide factor between the input clock (SDIOCLK) and the output clock (SDIO_CK) (SDIO_CK frequency = SDIOCLK / [clockDiv + 2]).module: Appropriate SD I/O module pinout. Valid values :
| SD I/O Module Pinouts |
| _GPIO_MODULE_SDIO_D0_D7 |
_GPIO_MODULE_SDIO_D0_D3 |
_GPIO_MODULE_SDIO_D0 |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_ClockCmd
| Prototype |
void SDIO_ClockCmd(char newState);
|
| Description |
Enables or disables the SD I/O Clock.
|
| Parameters |
cfg : New state of the SD I/O Clock. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
SD I/O Clock is disabled. |
| _SDIO_ENABLE |
SD I/O Clock is enabled. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_SetPowerState
| Prototype |
void SDIO_SetPowerState(char powerState);
|
| Description |
Sets the power status of the controller.
|
| Parameters |
cfg : New power state of the SD I/O controller. Valid values :
| Value |
Description |
| _SDIO_POWER_STATE_OFF |
The clock to card is stopped. |
| _SDIO_POWER_STATE_ON |
The card is clocked. |
| _SDIO_POWER_STATE_UP |
Reserved power-up. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_GetPowerState
| Prototype |
unsigned long SDIO_GetPowerState();
|
| Description |
Returns the power status of the controller.
|
| Parameters |
None.
|
| Returns |
Power status of the controller. The returned value can be one of the following values :
| Value |
Symbolic Name |
Description |
| 0 |
_SDIO_POWER_STATE_OFF |
The clock to card is stopped. |
| %11 |
_SDIO_POWER_STATE_ON |
The card is clocked. |
| %10 |
_SDIO_POWER_STATE_UP |
Reserved power-up. |
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_SendCommand
| Prototype |
void SDIO_SendCommand(SDIO_CmdInitTypeDef *SDIO_CmdInitStruct);
|
| Description |
Initializes the SD I/O Command according to the specified parameters in the SDIO_CmdInitStruct and sends the command.
|
| Parameters |
SDIO_CmdInitStruct : record consisted of the following fields :
typedef struct {
unsigned long argument; // Specifies the SD I/O command argument which is sent
// to a card as part of a command message. If a command
// contains an argument, it must be loaded into this register
// before writing the command to the command register.
unsigned long cmdIndex; // Specifies the SD I/O command index. It must be lower than 0x40.
unsigned long response; // Specifies the SD I/O response type.
unsigned long wait; // Specifies whether SD I/O wait-for-interrupt request is enabled or disabled.
unsigned long CPSM; // Specifies whether SD I/O Command path state machine (CPSM) is enabled or disabled.
} SDIO_CmdInitTypeDef;
SDIO_CmdInitTypeDef Record Field Values |
response |
_SDIO_RESPONSE_NO |
_SDIO_RESPONSE_SHORT |
_SDIO_RESPONSE_LONG |
wait |
_SDIO_WAIT_NO |
_SDIO_WAIT_IT |
_SDIO_WAIT_PEND |
CPSM |
_SDIO_CPSM_DISABLE |
_SDIO_CPSM_ENABLE |
|
|
| Returns |
None.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_GetCommandResponse
| Prototype |
char SDIO_GetCommandResponse();
|
| Description |
Returns command index of last command for which response received.
|
| Parameters |
|
| Returns |
Command index of the last command response received.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_DataConfig
| Prototype |
void SDIO_DataConfig(SDIO_DataInitTypeDef* SDIO_DataInitStruct);
|
| Description |
Initializes the SD I/O data path according to the specified parameters in the SDIO_DataInitStruct parameter.
|
| Parameters |
SDIO_DataInitStruct : record consisted of the following fields :
typedef struct
unsigned long dataTimeOut // Specifies the data timeout period in card bus clock periods.
unsigned long dataLength // Specifies the number of data bytes to be transferred.
unsigned long dataBlockSize // Specifies the data block size for block transfer.
unsigned long transferDir // Specifies the data transfer direction, whether the transfer is a read or write.
unsigned long transferMode // Specifies whether data transfer is in stream or block mode.
unsigned long DPSM // Specifies whether SD I/O Data path state machine (DPSM) is enabled or disabled.
} SDIO_DataInitTypeDef;
SDIO_DataInitTypeDef Record Field Values |
dataBlockSize |
_SDIO_DATA_BLOCK_SIZE_1 |
_SDIO_DATA_BLOCK_SIZE_2 |
_SDIO_DATA_BLOCK_SIZE_4 |
_SDIO_DATA_BLOCK_SIZE_8 |
_SDIO_DATA_BLOCK_SIZE_16 |
|
_SDIO_DATA_BLOCK_SIZE_32 |
_SDIO_DATA_BLOCK_SIZE_64 |
_SDIO_DATA_BLOCK_SIZE_128 |
_SDIO_DATA_BLOCK_SIZE_256 |
_SDIO_DATA_BLOCK_SIZE_512 |
|
_SDIO_DATA_BLOCK_SIZE_32 |
_SDIO_DATA_BLOCK_SIZE_64 |
_SDIO_DATA_BLOCK_SIZE_128 |
_SDIO_DATA_BLOCK_SIZE_256 |
_SDIO_DATA_BLOCK_SIZE_512 |
|
_SDIO_DATA_BLOCK_SIZE_1024 |
_SDIO_DATA_BLOCK_SIZE_2048 |
_SDIO_DATA_BLOCK_SIZE_4096 |
_SDIO_DATA_BLOCK_SIZE_8192 |
_SDIO_DATA_BLOCK_SIZE_16384 |
transferDir |
_SDIO_TRANSFER_DIR_TO_CARD |
_SDIO_TRANSFER_DIR_TO_SDIO |
|
|
|
transferMode |
_SDIO_TRANSFER_MODE_BLOCK |
_SDIO_TRANSFER_MODE_STREAM |
|
|
|
DPSM |
_SDIO_DPSM_DISABLE |
_SDIO_DPSM_ENABLE |
|
|
|
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_GetDataCounter
| Prototype |
unsigned long SDIO_GetDataCounter();
|
| Description |
Returns number of remaining data bytes to be transferred.
|
| Parameters |
None.
|
| Returns |
Number of remaining data bytes to be transferred.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_ReadData
| Prototype |
unsigned long SDIO_ReadData();
|
| Description |
Read one data word from Rx FIFO.
|
| Parameters |
None.
|
| Returns |
One data word from Rx FIFO.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_WriteData
| Prototype |
void SDIO_WriteData(unsigned long dat);
|
| Description |
Write one data word to Tx FIFO.
|
| Parameters |
dat: 32-bit data word to write.
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_GetFIFOCount
| Prototype |
unsigned long SDIO_GetFIFOCount();
|
| Description |
Returns the number of words left to be written to or read from FIFO.
|
| Parameters |
None.
|
| Returns |
Nothing.
|
| Requires |
Remaining number of words.
|
| Notes |
None.
|
SDIO_StartSDIOReadWait
| Prototype |
void SDIO_StartSDIOReadWait(char newState);
|
| Description |
Starts the SD I/O Read Wait operation.
|
| Parameters |
newState: new state of the Start SD I/O Read Wait operation. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
SD I/O Clock is disabled. |
| _SDIO_ENABLE |
SD I/O Clock is enabled. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_StopSDIOReadWait
| Prototype |
void SDIO_StopSDIOReadWait(char newState);
|
| Description |
Stops the SD I/O Read Wait operation.
|
| Parameters |
newState: new state of the Stop SD I/O Read Wait operation. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
SD I/O Clock is disabled. |
| _SDIO_ENABLE |
SD I/O Clock is enabled. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_SetSDIOReadWaitMode
| Prototype |
void SDIO_SetSDIOReadWaitMode(char readWaitMode);
|
| Description |
Sets one of the two options of inserting read wait interval.
|
| Parameters |
readWaitMode: SD I/O Read Wait operation mode. Valid values :
| Value |
Description |
| _SDIO_READ_WAIT_MODE_CLK |
Read Wait control by stopping SDIOCLK. |
| _SDIO_READ_WAIT_MODE_DATA2 |
Read Wait control using SDIO_DATA2. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_SetSDIOOperation
| Prototype |
void SDIO_SetSDIOOperation(char newState);
|
| Description |
Enables or disables the SD I/O Mode Operation.
|
| Parameters |
NewState: new state of SD I/O specific operation. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
Disable SD I/O operation. |
| _SDIO_ENABLE |
Enable SD I/O operation. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_SendSDIOSuspendCmd
| Prototype |
void SDIO_SendSDIOSuspendCmd(char newState);
|
| Description |
Enables or disables the SD I/O Mode suspend command sending.
|
| Parameters |
NewState: new state of the SD I/O Mode suspend command. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
Disable SD I/O command sending. |
| _SDIO_ENABLE |
Enable SD I/O command sending. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_CommandCompletionCmd
| Prototype |
void SDIO_CommandCompletionCmd(char newState);
|
| Description |
Enables or disables the command completion signal.
|
| Parameters |
NewState: new state of command completion signal. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
Disable SD I/O command completion signal. |
| _SDIO_ENABLE |
Enable SD I/O command completion signal. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_CEATAITCmd
| Prototype |
void SDIO_CEATAITCmd(char newState);
|
| Description |
Enables or disables the CE-ATA interrupt.
|
| Parameters |
NewState: new state of CE-ATA interrupt. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
Disable SD I/O CE-ATA interrupt. |
| _SDIO_ENABLE |
Enable SD I/O CE-ATA interrupt. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_SendCEATACmd
| Prototype |
void SDIO_SendCEATACmd(char newState);
|
| Description |
Enables or disables CE-ATA (CMD61) command sending.
|
| Parameters |
NewState: new state of CE-ATA command. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
Disable CE-ATA (CMD61) command sending. |
| _SDIO_ENABLE |
Enable CE-ATA (CMD61) command sending. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_DMACmd
| Prototype |
void SDIO_DMACmd(char newState);
|
| Description |
Enables or disables the SD I/O DMA request.
|
| Parameters |
NewState: new state of the selected SD I/O DMA request. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
Disable SD I/O DMA request. |
| _SDIO_ENABLE |
Enable SD I/O DMA request. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_ITConfig
| Prototype |
void SDIO_ITConfig(unsigned long it, char newState);
|
| Description |
Enables or disables the SD I/O interrupts.
|
| Parameters |
it: specifies the SD I/O interrupt sources to be enabled or disabled.
This parameter can be one or a OR-ed combination of the following values:
| Value |
Description |
| _SDIO_IT_CCRCFAIL |
Command response received (CRC check failed) interrupt. |
| _SDIO_IT_DCRCFAIL |
Data block sent/received (CRC check failed) interrupt. |
| _SDIO_IT_CTIMEOUT |
Command response timeout interrupt. |
| _SDIO_IT_DTIMEOUT |
Data timeout interrupt. |
| _SDIO_IT_TXUNDERR |
Transmit FIFO underrun error interrupt. |
| _SDIO_IT_RXOVERR |
Received FIFO overrun error interrupt. |
| _SDIO_IT_CMDREND |
Command response received (CRC check passed) interrupt. |
| _SDIO_IT_CMDSENT |
Command sent (no response required) interrupt. |
| _SDIO_IT_DATAEND |
Data end (data counter, SDIDCOUNT, is zero) interrupt. |
| _SDIO_IT_STBITERR |
Start bit not detected on all data signals in wide bus mode interrupt. |
| _SDIO_IT_DBCKEND |
Data block sent/received (CRC check passed) interrupt. |
| _SDIO_IT_CMDACT |
Command transfer in progress interrupt. |
| _SDIO_IT_TXACT |
Data transmit in progress interrupt. |
| _SDIO_IT_RXACT |
Data receive in progress interrupt. |
| _SDIO_IT_TXFIFOHE |
Transmit FIFO Half Empty interrupt. |
| _SDIO_IT_RXFIFOHF |
Receive FIFO Half Full interrupt. |
| _SDIO_IT_TXFIFOF |
Transmit FIFO full interrupt. |
| _SDIO_IT_RXFIFOF |
Receive FIFO full interrupt. |
| _SDIO_IT_TXFIFOE |
Transmit FIFO empty interrupt. |
| _SDIO_IT_RXFIFOE |
Receive FIFO empty interrupt. |
| _SDIO_IT_TXDAVL |
Data available in transmit FIFO interrupt. |
| _SDIO_IT_RXDAVL |
Data available in receive FIFO interrupt. |
| _SDIO_IT_SDIOIT |
SD I/O interrupt received interrupt. |
| _SDIO_IT_CEATAEND |
CE-ATA command completion signal received for CMD61 interrupt. |
NewState: new state of the specified SD I/O interrupts. Valid values :
| Value |
Description |
| _SDIO_DISABLE |
Disable SD I/O interrupts. |
| _SDIO_ENABLE |
Enable SD I/O interrupts. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_GetFlagStatus
| Prototype |
char SDIO_GetFlagStatus(unsigned long flag);
|
| Description |
Checks whether the specified SD I/O flag is set or not.
|
| Parameters |
it: specifies the flag to check. This parameter can be one of the following values :
| Value |
Description |
| _SDIO_IT_CCRCFAIL |
Command response received (CRC check failed). |
| _SDIO_IT_DCRCFAIL |
Data block sent/received (CRC check failed). |
| _SDIO_IT_CTIMEOUT |
Command response timeout. |
| _SDIO_IT_DTIMEOUT |
Data timeout. |
| _SDIO_IT_TXUNDERR |
Transmit FIFO underrun error. |
| _SDIO_IT_RXOVERR |
Received FIFO overrun error. |
| _SDIO_IT_CMDREND |
Command response received (CRC check passed). |
| _SDIO_IT_CMDSENT |
Command sent (no response required). |
| _SDIO_IT_DATAEND |
Data end (data counter, SDIDCOUNT, is zero). |
| _SDIO_IT_STBITERR |
Start bit not detected on all data signals in wide bus mode. |
| _SDIO_IT_DBCKEND |
Data block sent/received (CRC check passed). |
| _SDIO_IT_CMDACT |
Command transfer in progress. |
| _SDIO_IT_TXACT |
Data transmit in progress. |
| _SDIO_IT_RXACT |
Data receive in progress. |
| _SDIO_IT_TXFIFOHE |
Transmit FIFO Half Empty. |
| _SDIO_IT_RXFIFOHF |
Receive FIFO Half Full. |
| _SDIO_IT_TXFIFOF |
Transmit FIFO full. |
| _SDIO_IT_RXFIFOF |
Receive FIFO full. |
| _SDIO_IT_TXFIFOE |
Transmit FIFO empty. |
| _SDIO_IT_RXFIFOE |
Receive FIFO empty. |
| _SDIO_IT_TXDAVL |
Data available in transmit FIFO. |
| _SDIO_IT_RXDAVL |
Data available in receive FIFO. |
| _SDIO_IT_SDIOIT |
SD I/O interrupt received. |
| _SDIO_IT_CEATAEND |
CE-ATA command completion signal received for CMD61. |
|
| Returns |
The new state of SDIO_FLAG.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_ClearFlag
| Prototype |
void SDIO_ClearFlag(unsigned long flags);
|
| Description |
Clears the SD I/O's pending flags.
|
| Parameters |
it: specifies the flag to clear. This parameter can be one or a OR-ed combination of the following values :
| Value |
Description |
| _SDIO_IT_CCRCFAIL |
Command response received (CRC check failed). |
| _SDIO_IT_DCRCFAIL |
Data block sent/received (CRC check failed). |
| _SDIO_IT_CTIMEOUT |
Command response timeout. |
| _SDIO_IT_DTIMEOUT |
Data timeout. |
| _SDIO_IT_TXUNDERR |
Transmit FIFO underrun error. |
| _SDIO_IT_RXOVERR |
Received FIFO overrun error. |
| _SDIO_IT_CMDREND |
Command response received (CRC check passed). |
| _SDIO_IT_CMDSENT |
Command sent (no response required). |
| _SDIO_IT_DATAEND |
Data end (data counter, SDIDCOUNT, is zero). |
| _SDIO_IT_STBITERR |
Start bit not detected on all data signals in wide bus mode. |
| _SDIO_IT_DBCKEND |
Data block sent/received (CRC check passed). |
| _SDIO_IT_SDIOIT |
SD I/O interrupt received. |
| _SDIO_IT_CEATAEND |
CE-ATA command completion signal received for CMD61. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_GetITStatus
| Prototype |
char SDIO_GetITStatus(unsigned long i);
|
| Description |
Checks whether the specified SD I/O interrupt has occurred or not.
|
| Parameters |
it: specifies the SD I/O interrupt source to check. This parameter can be one of the following values :
| Value |
Description |
| _SDIO_IT_CCRCFAIL |
Command response received (CRC check failed) interrupt. |
| _SDIO_IT_DCRCFAIL |
Data block sent/received (CRC check failed) interrupt. |
| _SDIO_IT_CTIMEOUT |
Command response timeout interrupt. |
| _SDIO_IT_DTIMEOUT |
Data timeout interrupt. |
| _SDIO_IT_TXUNDERR |
Transmit FIFO underrun error interrupt. |
| _SDIO_IT_RXOVERR |
Received FIFO overrun error interrupt. |
| _SDIO_IT_CMDREND |
Command response received (CRC check passed) interrupt. |
| _SDIO_IT_CMDSENT |
Command sent (no response required) interrupt. |
| _SDIO_IT_DATAEND |
Data end (data counter, SDIDCOUNT, is zero) interrupt. |
| _SDIO_IT_STBITERR |
Start bit not detected on all data signals in wide bus mode interrupt. |
| _SDIO_IT_DBCKEND |
Data block sent/received (CRC check passed) interrupt. |
| _SDIO_IT_CMDACT |
Command transfer in progress interrupt. |
| _SDIO_IT_TXACT |
Data transmit in progress interrupt. |
| _SDIO_IT_RXACT |
Data receive in progress interrupt. |
| _SDIO_IT_TXFIFOHE |
Transmit FIFO Half Empty interrupt. |
| _SDIO_IT_RXFIFOHF |
Receive FIFO Half Full interrupt. |
| _SDIO_IT_TXFIFOF |
Transmit FIFO full interrupt. |
| _SDIO_IT_RXFIFOF |
Receive FIFO full interrupt. |
| _SDIO_IT_TXFIFOE |
Transmit FIFO empty interrupt. |
| _SDIO_IT_RXFIFOE |
Receive FIFO empty interrupt. |
| _SDIO_IT_TXDAVL |
Data available in transmit FIFO interrupt. |
| _SDIO_IT_RXDAVL |
Data available in receive FIFO interrupt. |
| _SDIO_IT_SDIOIT |
SD I/O interrupt received interrupt. |
| _SDIO_IT_CEATAEND |
CE-ATA command completion signal received for CMD61 interrupt. |
|
| Returns |
The new state of SDIO_IT.
|
| Requires |
Nothing.
|
| Notes |
None.
|
SDIO_ClearITPendingBit
| Prototype |
void SDIO_ClearITPendingBit(unsigned long it);
|
| Description |
Clears the SD I/O's interrupt pending bits.
|
| Parameters |
it: specifies the interrupt pending bit to clear. This parameter can be one or a OR-ed combination of the following values :
| Value |
Description |
| _SDIO_IT_CCRCFAIL |
Command response received (CRC check failed) interrupt. |
| _SDIO_IT_DCRCFAIL |
Data block sent/received (CRC check failed) interrupt. |
| _SDIO_IT_CTIMEOUT |
Command response timeout interrupt. |
| _SDIO_IT_DTIMEOUT |
Data timeout interrupt. |
| _SDIO_IT_TXUNDERR |
Transmit FIFO underrun error interrupt. |
| _SDIO_IT_RXOVERR |
Received FIFO overrun error interrupt. |
| _SDIO_IT_CMDREND |
Command response received (CRC check passed) interrupt. |
| _SDIO_IT_CMDSENT |
Command sent (no response required) interrupt. |
| _SDIO_IT_DATAEND |
Data end (data counter, SDIDCOUNT, is zero) interrupt. |
| _SDIO_IT_STBITERR |
Start bit not detected on all data signals in wide bus mode interrupt. |
| _SDIO_IT_DBCKEND |
Data block sent/received (CRC check passed) interrupt. |
| _SDIO_IT_SDIOIT |
SD I/O interrupt received interrupt. |
| _SDIO_IT_CEATAEND |
CE-ATA command completion signal received for CMD61 interrupt. |
|
| Returns |
Nothing.
|
| Requires |
Nothing.
|
| Notes |
None.
|
Copyright (c) 2002-2019 mikroElektronika. All rights reserved.
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