Renesas SH7781 - Manual (Page 1274)

24. Multimedia Card Interface (MMCIF)
Rev.1.00 Jan. 10, 2008 Page 1244 of 1658
REJ09B0261-0100
End of command sequence
Set DMACR to H'84
Clear DMACR to H'00
Set CMDOFF to 1
Clear DMACR to H'00
Execute CMD12
Set CMDOFF to 1
DTI interrupt
detected?
No
Yes
DMA transfer end?
No
Yes
CRCERI interrupt
detected?
Yes
No
DTERI interrupt
detected?
Yes
No
Next block read?
No
Yes
1 2
Set RD_CONTI to 1
Set CMDOFF to 1
Clear DMACR to H'00
Clear FIFO
Execute CMD12
Figure 24.23 (2) Example of Read Sequence Flow (Open-ended Multiple Block Transfer)