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SH7721 Datasheet(PDF) 1127 Page - Renesas Technology Corp

Part # SH7721
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  1524 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7721 Datasheet(HTML) 1127 Page - Renesas Technology Corp

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Section 31
MultiMediaCard Interface (MMCIF)
Rev. 3.00 Jan. 18, 2008 Page 1065 of 1458
REJ09B0033-0300
Write command type to CMDTYR
Write response type to RSPTYR
Write 1 to CMDSTRT
Write 1 to CMDOFF
CRCERI interrupt
generated?*
R1b response?
DBSYI interrupt
generated?
DTBUSY detected?
Command sequence start
Write command to CMDR0 to CMDR4
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
CRPI interrupt
generated?
Command sequence end
CTERI interrupt
generated?
Note*:
For the R2 command response, no CRC check is performed by hardware.
Therefore, perform CRC checking by software to see if there is an error.
Figure 31.6
Operational Flowchart for Commands without Data Transfer



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