SH7763 Datasheet, PDF (1418/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 31 Multimedia Card Interface (MMCIF)
Start of command sequence
Clear FIFO
Set the number of
transfer block size to TBCR
Execute CMD16
CMD16
No
normally ended?
Yes
Set the number of
transfer block to TBCR
Execute CMD 23
CMD 23
No
normally ended?
Yes
Set DMAC-related condition
Set DMACR (MMCIF)
Execute CMD 18
(CMDR to CMDSTRT)
CRCERI interrupt
Yes
detected?
No
CRPI interrupt
No
detected?
Yes
Read response register
Response status
No
normally ended?
Yes
1
CTERI interrupt
No
detected?
Yes
2
Figure 31.19 (1) Example of Operational Flow for Auto-mode
Pre-defined Multiblock Read Transfer
Rev. 1.00 Oct. 01, 2007 Page 1352 of 1956
REJ09B0256-0100