SH7785 Datasheet, PDF (1249/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

24. Multimedia Card Interface (MMCIF)
Input/output pins
MMCCLK
Transfer clock
transmission halted
MMCCMD
CMD18 (READ_MULTIPLE_BLOCK)
MMCDAT
CMDSTRT
(CMDSTART)
OPCR
(RD_CONTI)
Command Command
response Read data
Command
transmission started
Read data
(CMDOFF)
INTSTR0
(CMDI)
Transfer clock
transmission resumed
CMD12
(STOP_TRANSMISSION)
Command
Read data
Command
response
Block data
reception ended
(CRPI)
(DTI)
(FFI)
(BTI)
CSTR
(CWRE)
(BUSY)
(FIFO_FULL)
(REQ)
Multiblock read command execution sequence
Stop command
execution sequence
Figure 24.10 Example of Command Sequence for Commands with Read Data
(Multiple Block Transfer)
Rev.1.00 Jan. 10, 2008 Page 1219 of 1658
REJ09B0261-0100