| CMSIS-Driver Peripheral Interface for Middleware and Application Code |

Loading...
Searching...
No Matches
Macros
MCI Controls
MCI Interface » MCI Control Codes

Configure and control the MCI interface. More...

## Macros
#define | ARM_MCI_BUS_SPEED (0x01UL)
| Set Bus Speed; arg = requested speed in bits/s; returns configured speed in bits/s.
#define | ARM_MCI_BUS_SPEED_MODE (0x02UL)
| Set Bus Speed Mode as specified with arg.
#define | ARM_MCI_BUS_CMD_MODE (0x03UL)
| Set CMD Line Mode as specified with arg.
#define | ARM_MCI_BUS_DATA_WIDTH (0x04UL)
| Set Bus Data Width as specified with arg.
#define | ARM_MCI_DRIVER_STRENGTH (0x05UL)
| Set SD UHS-I Driver Strength as specified with arg.
#define | ARM_MCI_CONTROL_RESET (0x06UL)
| Control optional RST_n Pin (eMMC); arg: 0=inactive, 1=active.
#define | ARM_MCI_CONTROL_CLOCK_IDLE (0x07UL)
| Control Clock generation on CLK Pin when idle; arg: 0=disabled, 1=enabled.
#define | ARM_MCI_UHS_TUNING_OPERATION (0x08UL)
| Sampling clock Tuning operation (SD UHS-I); arg: 0=reset, 1=execute.
#define | ARM_MCI_UHS_TUNING_RESULT (0x09UL)
| Sampling clock Tuning result (SD UHS-I); returns: 0=done, 1=in progress, -1=error.
#define | ARM_MCI_DATA_TIMEOUT (0x0AUL)
| Set Data timeout; arg = timeout in bus cycles.
#define | ARM_MCI_CSS_TIMEOUT (0x0BUL)
| Set Command Completion Signal (CCS) timeout; arg = timeout in bus cycles.
#define | ARM_MCI_MONITOR_SDIO_INTERRUPT (0x0CUL)
| Monitor SD I/O interrupt: arg: 0=disabled, 1=enabled.
#define | ARM_MCI_CONTROL_READ_WAIT (0x0DUL)
| Control Read/Wait for SD I/O; arg: 0=disabled, 1=enabled.
#define | ARM_MCI_SUSPEND_TRANSFER (0x0EUL)
| Suspend Data transfer (SD I/O); returns number of remaining bytes to transfer.
#define | ARM_MCI_RESUME_TRANSFER (0x0FUL)
| Resume Data transfer (SD I/O)

## Description

Configure and control the MCI interface.

The following codes are used as values for the parameter control of the function ARM_MCI_Control to setup the MCI interface.

## Macro Definition Documentation

## ◆ ARM_MCI_BUS_SPEED

#define ARM_MCI_BUS_SPEED (0x01UL)

Set Bus Speed; arg = requested speed in bits/s; returns configured speed in bits/s.

## ◆ ARM_MCI_BUS_SPEED_MODE

#define ARM_MCI_BUS_SPEED_MODE (0x02UL)

Set Bus Speed Mode as specified with arg.

## ◆ ARM_MCI_BUS_CMD_MODE

#define ARM_MCI_BUS_CMD_MODE (0x03UL)

Set CMD Line Mode as specified with arg.

## ◆ ARM_MCI_BUS_DATA_WIDTH

#define ARM_MCI_BUS_DATA_WIDTH (0x04UL)

Set Bus Data Width as specified with arg.

## ◆ ARM_MCI_DRIVER_STRENGTH

#define ARM_MCI_DRIVER_STRENGTH (0x05UL)

Set SD UHS-I Driver Strength as specified with arg.

## ◆ ARM_MCI_CONTROL_RESET

#define ARM_MCI_CONTROL_RESET (0x06UL)

Control optional RST_n Pin (eMMC); arg: 0=inactive, 1=active.

## ◆ ARM_MCI_CONTROL_CLOCK_IDLE

#define ARM_MCI_CONTROL_CLOCK_IDLE (0x07UL)

Control Clock generation on CLK Pin when idle; arg: 0=disabled, 1=enabled.

## ◆ ARM_MCI_UHS_TUNING_OPERATION

#define ARM_MCI_UHS_TUNING_OPERATION (0x08UL)

Sampling clock Tuning operation (SD UHS-I); arg: 0=reset, 1=execute.

## ◆ ARM_MCI_UHS_TUNING_RESULT

#define ARM_MCI_UHS_TUNING_RESULT (0x09UL)

Sampling clock Tuning result (SD UHS-I); returns: 0=done, 1=in progress, -1=error.

## ◆ ARM_MCI_DATA_TIMEOUT

#define ARM_MCI_DATA_TIMEOUT (0x0AUL)

Set Data timeout; arg = timeout in bus cycles.

## ◆ ARM_MCI_CSS_TIMEOUT

#define ARM_MCI_CSS_TIMEOUT (0x0BUL)

Set Command Completion Signal (CCS) timeout; arg = timeout in bus cycles.

## ◆ ARM_MCI_MONITOR_SDIO_INTERRUPT

#define ARM_MCI_MONITOR_SDIO_INTERRUPT (0x0CUL)

Monitor SD I/O interrupt: arg: 0=disabled, 1=enabled.

## ◆ ARM_MCI_CONTROL_READ_WAIT

#define ARM_MCI_CONTROL_READ_WAIT (0x0DUL)

Control Read/Wait for SD I/O; arg: 0=disabled, 1=enabled.

## ◆ ARM_MCI_SUSPEND_TRANSFER

#define ARM_MCI_SUSPEND_TRANSFER (0x0EUL)

Suspend Data transfer (SD I/O); returns number of remaining bytes to transfer.

## ◆ ARM_MCI_RESUME_TRANSFER

#define ARM_MCI_RESUME_TRANSFER (0x0FUL)

Resume Data transfer (SD I/O)