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Renesas SH7781 User Manual

Page 1259

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24. Multimedia Card Interface (MMCIF)

Rev.1.00 Jan. 10, 2008 Page 1229 of 1658

REJ09B0261-0100

MMCCLK

MMCCMD

MMCDAT

CMDSTRT

(CMDSTART)

(CMDI)

CSTR

(CWRE)

(BUSY)

(DTBUSY)

(DTBUSY_TU)

(REQ)

(CRPI)

(DTI)

(DBSYI)

(FEI)

(FIFO_EMPTY)

CMD24 (WRITE_SINGLE_BLOCK)

OPCR

(DATAEN)

(DRPI)

INTSTR0

Input/output pins

Command

Command
response

Command
transmission
started

Single block write command execution sequence

Write data

Status

Busy

Figure 24.15 Example of Command Sequence for Commands with Write Data

(Block Size

FIFO Size)