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Peripheral Architecture
Figure 9. Big-Endian  Access to MMCDXR/MMCDRR from the ARM CPU or the EDMA
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Support byten = | ”1111” | 
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Support byten =  | ”1110” | |||
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Support byten = ”1100”
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Support byten = ”1000”
18  | Multimedia Card (MMC)/Secure Digital (SD) Card Controller  | SPRUE30B   |