Renesas SH7781 - Manual (Page 1254)

24. Multimedia Card Interface (MMCIF)
Rev.1.00 Jan. 10, 2008 Page 1224 of 1658
REJ09B0261-0100
Start of command sequence
Clear FIFO
Execute CMD16
Read response register
Execute CMD18
(Set CMDR then CMDSTRT)
Set the block size in TBCR
No
Yes
CRCERI interrupt
detected?
Yes
No
CMD16
normal end?
Execute CMD23
Set the number of blocks
for transfer (TBNCR)
Yes
No
CMD23
normal end?
Yes
No
CRPI interrupt
detected?
Yes
No
Response status
normal?
Yes
No
CTERI interrupt
detected?
1 2
Figure 24.13 Example of Operational Flow for Commands with Read Data (3)
(Pre-defined Multiple Block Transfer)