SH7785 Datasheet, PDF (1245/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

24. Multimedia Card Interface (MMCIF)
Start of command sequence
Set command data in
CMDR0 to CMDR4
Set command type in CMDTYR
Set command response type
in RSPTYR
Write 1 to CMDSTRT
Yes
CRCERI
interrupt detected?
No
CRPI
No
interrupt detected?
Yes
R1b
No
response?
Yes
DTBUSY
No
detected?
Yes
No
DBSYI
interrupt detected?
Yes
No
CTERI interrupt
detected?
Yes
Write 1 to CMDOFF
End of command sequence
Figure 24.7 Example of Operational Flow for Commands without Data Transfer
Rev.1.00 Jan. 10, 2008 Page 1215 of 1658
REJ09B0261-0100