Download EMMA Mobile1 Application Note SD Memory Card Interface

Transcript
APPENDIX A SD Driver Function
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A.4.14 Transfer Prepare
[Function Name]
_em1_sd_transfer_prepare
[Format]
int _em1_sd_transfer_prepare(SDM_NUM sd_n);
[Argument]
Parameter
sd_n
Type
SDM_NUM
I/O
I
Detail
Enum to select SDIA, SDIB or SDIC
[Function Return]
None
[Flow Chart]
Start
All information clear
[ SDIx_INFO1 SDIx_INFO2 ]
Clear stop setting bit
[ SDIx_STOP ]
Enable all error occur
[ SDIx_INFO2_MASK ]
Enable R/W access end
[ SDIx_INFO1_MASK ]
End
Figure A-10 Register Prepare before Data transfer
[Note]
None.
Application Note S19895EJ1V0AN00