r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1250

• 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 1220 of 1658
REJ09B0261-0100
(CMDSTART)
(FIFO_FULL)
Input/output
pins
(RD_CONTI)
MMCCMD
(CMDOFF)
MMCCLK
CMDSTRT
MMCDAT
INTSTR0
(CWRE)
(BUSY)
(CMDI)
(CRPI)
(REQ)
OPCR
(DTI)
(FFI)
CSTR
Figure 24.11 Example of Command Sequence for Commands with Read Data
CMD11 (READ_DAT_UNTIL_STOP)
Command
transmission
started
Command
Stream read command execution sequence
Command
response
Read data
(Stream Transfer)
Data reception
suspended
Transfer clock
transmission
halted
Read data from FIFO
Read data
Transfer clock
transmission resumed
Data reception
resumed
Read data
CMD12
(STOP_TRANSMISSION)
Data reception ended
Transfer clock
transmission resumed
execution sequence
Stop command
Command Command
response