Renesas SH7781 - Manual (Page 1285)

24. Multimedia Card Interface (MMCIF)
Rev.1.00 Jan. 10, 2008 Page 1255 of 1658
REJ09B0261-0100
End of command sequence
Set DATAEN to 1
DRPI interrupt
detected?
No
Yes
DBSYI interrupt
detected?
No
Yes
CRCERI
or WRERI interrupt
detected?
Yes
No
DTERI interrupt
detected?
Yes
No
Next block write?
No
Yes
DTBUSY detected?
No
Yes
FRDYI interrupt
detected or DMA transfer
end?
No
Yes
Clear DMACR to H'00
DMA transfer end?
No
Yes
DTI interrupt
detected?
No
Yes
1 2
Set CMDOFF to 1
Clear FIFO
Clear DMACR to H'00
Execute CMD12 or Stop Tran
Set CMDOFF to 1
Execute CMD12 or Stop Tran
Set CMDOFF to 1
Figure 24.27 (2) Example of Write Sequence Flow (Open-ended Multiple Block Transfer)