HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1152

• 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 1090 of 1458
REJ09B0033-0300
Figure 31.23
MultiMediaCard Interface (MMCIF)
No
No
Execute CMD17 (CMDR to CMDSTRT)
Write transfer block size to TBCR
Operational Flowchart for Read Sequence (Single Block Transfer)
Command sequence start
Command sequence end
Read response register
Set DMACR (MMCIF)
Set DMACR to H'84
Set DMACR to H'00
Is CRCERI interrupt
Is CRCERI interrupt
Does DMA transfer
Execute CMD16
Does CMD16 end
Is DTERI interrupt
Is response status
No
Yes
Is CRPI interrupt
Is DTI interrupt
Yes
successfully?
generated?
FIFO clear
Set DMAC
generated?
generated?
generated?
generated?
normal?
end?
No
No
Yes
Yes
Yes
No
Yes
No
No
Yes
Yes
Write 1 to CMDOFF
Set DMACR to H'00
FIFO clear
Write 1 to CMDOFF
Set DMACR to H'00
Is CTERI interrupt
generated?
Yes
No