24. Multimedia Card Interface (MMCIF)

Rev.1.00 Jan. 10, 2008 Page 1232 of 1658

REJ09B0261-0100

MMCCLK
MMCCMD
MMCDAT
CMDSTRT
(CMDSTART)
INTSTR0
(CMDI)
(CMDOFF)
CSTR
(CWRE)
(BUSY)
(DTBUSY)
(DTBUSY_TU)
(REQ)
(CRPI)
(DRPI)
(DBSYI)
(DTI)
(FEI)
(FIFO_EMPTY)
CMD20 (WRITE_DAT_UNTIL_STOP) CMD12(STOP_TRANSMISSION)
OPCR
(DATAEN)
Input/output pins
Command Command
response Command
Stop command
execution sequence
Busy
Transfer
clock
trans-
mission
halted
Transfer
clock
trans-
mission
halted
Transfer
clock
transmission
resumed
Transfer
clock
transmission
resumed
Writing data to FIFO
Data
transmission
suspended
Data
transmission
suspended
Data
transmission
resumed
Data
transmission
ended
Stream write command execution sequence
Command
response
Command
transmission
started
Write data Write data Write data
Figure 24.18 Example of Command Sequence for Commands with Write Data (Stream Transfer)