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##

# 2.106.7 SDMMCx_IsDatLineBusy Function

## C

    /* x = SDMMC instance number */

    bool SDMMCx_IsDatLineBusy ( void )

## Summary

Returns the status of the data line.

## Description

The status of the data line must be checked before initiating a data transfer by calling this API

## Precondition

SDMMCx_Initialize() must have been called first for the associated instance.

## Parameters

None.

## Returns

true - If the data line is busy.

false - If the data line is ready.

## Example

    if (SDMMC1_IsDatLineBusy() == false)
    {
        // Transmit next data
    }

## Remarks

This function must be called to check the status of Commands with busy signal (example R1b).