SH7763 Datasheet, PDF (1414/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 31 Multimedia Card Interface (MMCIF)
1
*
Writing data to FIFO
Set the DATAEN to 1
No
FEI interrupt
detected?
Yes
No
Cap × n (FEI)
- Len (1 + n (DRPI))
≥ Len
Yes
No
DTI interrupt
detected?
Yes
Yes
CRCERI interrupt
detected?
No
Yes
DTERI interrupt
detected?
No
No
DRPI interrupt
detected?
Yes
No
DTBUSY detected?
Yes
No
DBSYI interrupt
detected?
Yes
No
Next block write?
Yes
Set the CMDOFF to 1
Execute CMD12
2
Set the CMDOFF to 1
End of command sequence
Note: * Write data for block size (block size < or = FIFO size) or for FIFO size (block size > FIFO size).
[Legend]
Len:
Block length [Byte]
Cap: FIFO size [Byte]
n (FEI): Number of FEI from write sequence starts
n (DRPI): Number of DRPI from write sequence starts
Figure 31.17 (2) Example of Operational Flow for Commands with Write Data
(Open-ended Multiblock Transfer)
Rev. 1.00 Oct. 01, 2007 Page 1348 of 1956
REJ09B0256-0100