SH7760 Datasheet, PDF (1012/1345 Pages) Renesas Technology Corp – SuperHTM RISC engine

Start of command sequence
Execute CMD16
: Set block length
Set the number of transfer bytes
(block size) to (TBCR)
Write data to FIFO
Execute CMD25
: Execute multiblock data write
(CRCERI) interrupt ^Yes
detected?
No
No
(CRPI) interrupt
detected?
Yes
Read response register
Response status?
No error
Error
Set the (DATAEN) bit to 1
(DTI) interrupt ^Yes
detected?
No
No _{(FEI) interrupt}
detected?
Yes
Yes _{Block data write}
completed?
No
Write data to FIFO
(CRCERI) interrupt ^Yes
detected?
No
No (DRPI) interrupt
detected?
Yes
No _{(DTBUSY) check}
Yes
(DBSYI) interrupt ^No
detected?
Yes
Yes
Next block write?
No
Set the (CMDOFF) bit to 1
Execute CMD12
End of command sequence
Set the (CMDOFF) bit to 1
Set the (CMDOFF) bit to 1
Execute CMD12
Abnormal end of command sequence
Figure 26.20 Example of Operational Flow for Commands with Write Data
(Multiblock Transfer)
Rev. 1.0, 02/03, page 962 of 1294