| CMSIS-Driver Version 2.02 Peripheral Interface for Middleware and Application Code

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Macros
MCI Controls
MCI Control Codes

Configure and control the MCI interface. More...

## Macros

#define | ARM_MCI_BUS_SPEED (0x01)
| Set Bus Speed; arg = requested speed in bits/s; returns configured speed in bits/s.
#define | ARM_MCI_BUS_SPEED_MODE (0x02)
| Set Bus Speed Mode as specified with arg.
#define | ARM_MCI_BUS_CMD_MODE (0x03)
| Set CMD Line Mode as specified with arg.
#define | ARM_MCI_BUS_DATA_WIDTH (0x04)
| Set Bus Data Width as specified with arg.
#define | ARM_MCI_DRIVER_STRENGTH (0x05)
| Set SD UHS-I Driver Strength as specified with arg.
#define | ARM_MCI_CONTROL_RESET (0x06)
| Control optional RST_n Pin (eMMC); arg: 0=inactive, 1=active.
#define | ARM_MCI_CONTROL_CLOCK_IDLE (0x07)
| Control Clock generation on CLK Pin when idle; arg: 0=disabled, 1=enabled.
#define | ARM_MCI_UHS_TUNING_OPERATION (0x08)
| Sampling clock Tuning operation (SD UHS-I); arg: 0=reset, 1=execute.
#define | ARM_MCI_UHS_TUNING_RESULT (0x09)
| Sampling clock Tuning result (SD UHS-I); returns: 0=done, 1=in progress, -1=error.
#define | ARM_MCI_DATA_TIMEOUT (0x0A)
| Set Data timeout; arg = timeout in bus cycles.
#define | ARM_MCI_CSS_TIMEOUT (0x0B)
| Set Command Completion Signal (CCS) timeout; arg = timeout in bus cycles.
#define | ARM_MCI_MONITOR_SDIO_INTERRUPT (0x0C)
| Monitor SD I/O interrupt: arg: 0=disabled, 1=enabled.
#define | ARM_MCI_CONTROL_READ_WAIT (0x0D)
| Control Read/Wait for SD I/O; arg: 0=disabled, 1=enabled.
#define | ARM_MCI_SUSPEND_TRANSFER (0x0E)
| Suspend Data transfer (SD I/O); returns number of remaining bytes to transfer.
#define | ARM_MCI_RESUME_TRANSFER (0x0F)
| Resume Data transfer (SD I/O)

## Description

Configure and control the MCI interface.

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

## Macro Definition Documentation

#define ARM_MCI_BUS_CMD_MODE (0x03)

Set CMD Line Mode as specified with arg.

#define ARM_MCI_BUS_DATA_WIDTH (0x04)

Set Bus Data Width as specified with arg.

#define ARM_MCI_BUS_SPEED (0x01)

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

#define ARM_MCI_BUS_SPEED_MODE (0x02)

Set Bus Speed Mode as specified with arg.

#define ARM_MCI_CONTROL_CLOCK_IDLE (0x07)

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

#define ARM_MCI_CONTROL_READ_WAIT (0x0D)

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

#define ARM_MCI_CONTROL_RESET (0x06)

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

#define ARM_MCI_CSS_TIMEOUT (0x0B)

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

#define ARM_MCI_DATA_TIMEOUT (0x0A)

Set Data timeout; arg = timeout in bus cycles.

#define ARM_MCI_DRIVER_STRENGTH (0x05)

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

#define ARM_MCI_MONITOR_SDIO_INTERRUPT (0x0C)

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

#define ARM_MCI_RESUME_TRANSFER (0x0F)

Resume Data transfer (SD I/O)

#define ARM_MCI_SUSPEND_TRANSFER (0x0E)

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

#define ARM_MCI_UHS_TUNING_OPERATION (0x08)

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

#define ARM_MCI_UHS_TUNING_RESULT (0x09)

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