r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1287

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

Figure 24.27 (4) Example of Write Sequence Flow (Pre-defined Multiple Block Transfer)
Legend:
n (DRPI): Number of data response interrupts (DRPI) from the start of write sequence
No
No
No
No
No
No
End of command sequence
Clear DMACR to H'00
detected or DMA transfer
TBNCR = n (DRPI)?
DTBUSY detected?
DMA transfer end?
or WRERI interrupt
Set CMDOFF to 1
Set DATAEN to 1
DTERI interrupt
DBSYI interrupt
DRPI interrupt
FRDYI interrupt
DTI interrupt
BTI interrupt
detected?
detected?
detected?
detected?
detected?
detected?
CRCERI
end?
1
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
No
No
Execute CMD12 or Stop Tran
Clear DMACR to H'00
Set CMDOFF to 1
Clear FIFO
Rev.1.00 Jan. 10, 2008 Page 1257 of 1658
24. Multimedia Card Interface (MMCIF)
Set CMDOFF to 1
2
REJ09B0261-0100