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SH7721 Datasheet(PDF) 1137 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) 1137 Page - Renesas Technology Corp

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Section 31
MultiMediaCard Interface (MMCIF)
Rev. 3.00 Jan. 18, 2008 Page 1075 of 1458
REJ09B0033-0300
[1]
[2]
Write 1 to RD_CONTI
Read data from FIFO
Read data from FIFO
Write 1 to CMDOFF
Write 1 to CMDOFF
Write 1 to CMDOFF
Execute CMD12
FIFO clear
Yes
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Is CRCERI interrupt
generated?
Is DTERI interrupt
generated?
Is DTERI interrupt
generated?
Is DTI interrupt
generated?
TBNCR value = n(DTI)?
Is FFI interrupt
generated?
Is BTI interrupt
generated?
Block length (byte)
Len:
Cap:
n(FFI):
FIFO size (byte)
The number of FFIs from the start
of read sequence
n(DTI):
The number of DTIs from the start
of read sequence
Note:
*
Cap
≥
Len (1 + n(DTI))
- Cap
× n(FFI) *
Command sequence end
Figure 31.13
Operational Flowchart for Commands with Read Data
(Pre-defined Multiblock Transfer) (2)



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