r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1284

• 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 1254 of 1658
REJ09B0261-0100
Figure 24.27 (1) Example of Write Sequence Flow (Open-ended Multiple Block Transfer)
(Set CMDR then CMDSTRT)
Start of command sequence
Set DMACR (in the MMCIF)
Set the block size in TBCR
Read response register
Configure the DMAC
CRCERI interrupt
Response status
Execute CMD 25
Execute CMD16
CRPI interrupt
normal end?
Clear FIFO
detected?
detected?
normal?
CMD16
1
Yes
Yes
Yes
No
Yes
No
No
No
CTERI interrupt
detected?
2
Yes
No