CMSIS-Driver  Version 2.6.0
Peripheral Interface for Middleware and Application Code
 All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
MCI Controls

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

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

#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)