r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1277

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

No
Figure 24.24 Example of Operational Flow for Stream Read Transfer
(Set CMDR then CMDSTRT)
Start of command sequence
Set DMACR (in the MMCIF)
End of command sequence
Read response register
Clear DMACR to H'00
Configure the DMAC
DMA transfer end?
CRCERI interrupt
Set CMDOFF to 1
Response status
Execute CMD11
Execute CMD12
DTERI interrupt
CRPI interrupt
Clear FIFO
detected?
detected?
detected?
normal?
Yes
Yes
Yes
No
No
Yes
Yes
No
No
Set CMDOFF to 1
Execute CMD12
Clear FIFO
Rev.1.00 Jan. 10, 2008 Page 1247 of 1658
24. Multimedia Card Interface (MMCIF)
Set CMDOFF to 1
CTERI interrupt
detected?
Yes
REJ09B0261-0100
No