r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1260

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

24. Multimedia Card Interface (MMCIF)
Rev.1.00 Jan. 10, 2008 Page 1230 of 1658
REJ09B0261-0100
(FIFO_EMPTY)
(DTBUSY_TU)
(CMDSTART)
CMDSTRT
(CMDOFF)
Input/output pins
MMCCMD
(DTBUSY)
(DATAEN)
MMCCLK
INTSTR0
MMCDAT
(DBSYI)
(CWRE)
(CMDI)
OPCR
(CRPI)
(DRPI)
(BUSY)
(REQ)
CSTR
(DTI)
(FEI)
Figure 24.16 Example of Command Sequence for Commands with Write Data
Command
transmission
started
CMD24 (WRITE_SINGLE_BLOCK)
Command
Single block write command execution sequence
(Block Size > FIFO Size)
Command
response
Write data
Transfer clock
transmission
halted
Writing data to FIFO
Block data
transmission
suspended
Block data
transmission
resumed
Transfer clock
transmission resumed
Write data
Busy