r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1248

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