Datasheet

AM1808
www.ti.com SPRS653E –FEBRUARY 2010–REVISED MARCH 2014
6.13 MMC / SD / SDIO (MMCSD0, MMCSD1)
6.13.1 MMCSD Peripheral Description
The device includes an two MMCSD controllers which are compliant with MMC V4.0, Secure Digital Part 1
Physical Layer Specification V1.1 and Secure Digital Input Output (SDIO) V2.0 specifications.
The MMC/SD Controller have following features:
• MultiMediaCard (MMC)
• Secure Digital (SD) Memory Card
• MMC/SD protocol support
• SD high capacity support
• SDIO protocol support
• Programmable clock frequency
• 512 bit Read/Write FIFO to lower system overhead
• Slave EDMA transfer capability
The device MMC/SD Controller does not support SPI mode.
6.13.2 MMCSD Peripheral Register Description(s)
Table 6-35. Multimedia Card/Secure Digital (MMC/SD) Card Controller Registers
MMCSD0 MMCSD1
ACRONYM REGISTER DESCSRIPTION
BYTE ADDRESS BYTE ADDRESS
0x01C4 0000 0x01E1 B000 MMCCTL MMC Control Register
0x01C4 0004 0x01E1 B004 MMCCLK MMC Memory Clock Control Register
0x01C4 0008 0x01E1 B008 MMCST0 MMC Status Register 0
0x01C4 000C 0x01E1 B00C MMCST1 MMC Status Register 1
0x01C4 0010 0x01E1 B010 MMCIM MMC Interrupt Mask Register
0x01C4 0014 0x01E1 B014 MMCTOR MMC Response Time-Out Register
0x01C4 0018 0x01E1 B018 MMCTOD MMC Data Read Time-Out Register
0x01C4 001C 0x01E1 B01C MMCBLEN MMC Block Length Register
0x01C4 0020 0x01E1 B020 MMCNBLK MMC Number of Blocks Register
0x01C4 0024 0x01E1 B024 MMCNBLC MMC Number of Blocks Counter Register
0x01C4 0028 0x01E1 B028 MMCDRR MMC Data Receive Register
0x01C4 002C 0x01E1 B02C MMCDXR MMC Data Transmit Register
0x01C4 0030 0x01E1 B030 MMCCMD MMC Command Register
0x01C4 0034 0x01E1 B034 MMCARGHL MMC Argument Register
0x01C4 0038 0x01E1 B038 MMCRSP01 MMC Response Register 0 and 1
0x01C4 003C 0x01E1 B03C MMCRSP23 MMC Response Register 2 and 3
0x01C4 0040 0x01E1 B040 MMCRSP45 MMC Response Register 4 and 5
0x01C4 0044 0x01E1 B044 MMCRSP67 MMC Response Register 6 and 7
0x01C4 0048 0x01E1 B048 MMCDRSP MMC Data Response Register
0x01C4 0050 0x01E1 B050 MMCCIDX MMC Command Index Register
0x01C4 0064 0x01E1 B064 SDIOCTL SDIO Control Register
0x01C4 0068 0x01E1 B068 SDIOST0 SDIO Status Register 0
0x01C4 006C 0x01E1 B06C SDIOIEN SDIO Interrupt Enable Register
0x01C4 0070 0x01E1 B070 SDIOIST SDIO Interrupt Status Register
0x01C4 0074 0x01E1 B074 MMCFIFOCTL MMC FIFO Control Register
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