Renesas SH7781 - Manual (Page 1248)

24. Multimedia Card Interface (MMCIF)
Rev.1.00 Jan. 10, 2008 Page 1218 of 1658
REJ09B0261-0100
MMCCLK
MMCCMD
MMCDAT
CMDSTRT
(CMDSTART)
INTSTR0
(CMDI)
(CMDOFF)
CSTR
(CWRE)
(BUSY)
(REQ)
(CRPI)
(DTI)
(FFI)
(FIFO_FULL)
CMD17 (READ_SINGLE_BLOCK)
OPCR
(RD_CONTI)
Input/output pins
Transfer clock
transmission halted Transfer clock
transmission resumed
Command response
Command Block data
reception suspended
Read data Read data
Block data
reception resumed
Reading data
from FIFO
Single block read command execution sequence
Command
transmission
started
Figure 24.9 Example of Command Sequence for Commands with Read Data
(Block Size > FIFO Size)