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SH7721 Datasheet(PDF) 1133 Page - Renesas Technology Corp |
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SH7721 Datasheet(HTML) 1133 Page - Renesas Technology Corp |
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1133 / 1524 page  Section 31 MultiMediaCard Interface (MMCIF) Rev. 3.00 Jan. 18, 2008 Page 1071 of 1458 REJ09B0033-0300 Command sequence start Command sequence end FIFO clear Write transfer block size to TBCR Execute CMD16 Execute CMD17 (CMDR to CMDSTRT) Read response register Read data from FIFO FIFO clear Write 1 to CMDOFF Write 1 to RD_CONTI Read data from FIFO Write 1 to CMDOFF Yes Yes No Yes No Yes No Yes No No Yes No Yes No Yes Yes No No Yes No Yes No Does CMD16 end successfully? Is CRCERI interrupt generated? Is CRPI interrupt generated? Cap ≥ Len - Cap × n(FFI) Is response status normal? Is DTERI interrupt generated? Is CRCERI interrupt generated? Is DTERI interrupt generated? Is DTI interrupt generated? Is FFI interrupt generated? Is CTERI interrupt generated? * Block length (byte) Len: Cap: n(FFI): FIFO size (byte) The number of FEIs from the start of read sequence Note:* Figure 31.11 Operational Flowchart for Commands with Read Data (Single Block Transfer) |
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