HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1162

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 31
Rev. 3.00 Jan. 18, 2008 Page 1100 of 1458
REJ09B0033-0300
Figure 31.28
MultiMediaCard Interface (MMCIF)
Operational Flowchart for Write Sequence (Single Block Transfer)
No
No
No
No
No
Execute CMD24 (CMDR to CMDSTRT)
Write transfer block size to TBCR
Is FRDYI interrupt is generated
Command sequence start
Command sequence end
or does DMA transfer end?
Read response register
Set DMACR (MMCIF)
Set DMACR to H'00
Is DBSYI interrupt
Is CRCERI or WRERI
Is CRCERI interrupt
Write 1 to DATEN
interrupt generated?
Does DMA transfer
Is response status
Is DTERI interrupt
Is DRPI interrupt
Execute CMD16
Does CMD16 end
No
Yes
Yes
Yes
Yes
Is CRPI interrupt
Yes
Is DTI interrupt
Yes
Yes
Yes
successfully?
generated?
No
No
generated?
Is DTBUSY
FIFO clear
Set DMAC
generated?
generated?
generated?
generated?
detected?
normal?
end?
Yes
Yes
No
Yes
No
No
Yes
Yes
No
Write 1 to CMDOFF
Is CTERI interrupt
generated?
Yes
No