Renesas SH7781 - Manual (Page 1279)

24. Multimedia Card Interface (MMCIF)
Rev.1.00 Jan. 10, 2008 Page 1249 of 1658
REJ09B0261-0100
End of command sequence
Set DMACR to H'84
Set CMDOFF to 1
Clear DMACR to H'00 Clear DMACR to H'00
Clear FIFO
Execute CMD12
Set CMDOFF to 1
Clear DMACR to H'00
Set CMDOFF to 1
BTI interrupt
detected?
No
Yes
DMA transfer end?
No
Yes
CRCERI interrupt
detected?
Yes
No
DTERI interrupt
detected?
Yes
No
1 2
Figure 24.25 (2) Example of Operational Flow for Auto-mode
Pre-defined Multiple Block Read Transfer