OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
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6.13 MMC / SD / SDIO (MMCSD)
6.13.1 MMCSD Peripheral Description
The OMAP-L137 includes an MMCSD controller which is 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 has following features:
•
MultiMediaCard (MMC) support
•
Secure Digital (SD) Memory Card support
•
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 OMAP-L137 MMC/SD Controller does not support SPI mode.
6.13.2
MMCSD Peripheral Register Description(s)
Table 6-33. Multimedia Card/Secure Digital (MMC/SD) Card Controller Registers
BYTE
ACRONYM
REGISTER DESCRIPTION
ADDRESS
0x01C4 0000
MMCCTL
MMC Control Register
0x01C4 0004
MMCCLK
MMC Memory Clock Control Register
0x01C4 0008
MMCST0
MMC Status Register 0
0x01C4 000C
MMCST1
MMC Status Register 1
0x01C4 0010
MMCIM
MMC Interrupt Mask Register
0x01C4 0014
MMCTOR
MMC Response Time-Out Register
0x01C4 0018
MMCTOD
MMC Data Read Time-Out Register
0x01C4 001C
MMCBLEN
MMC Block Length Register
0x01C4 0020
MMCNBLK
MMC Number of Blocks Register
0x01C4 0024
MMCNBLC
MMC Number of Blocks Counter Register
0x01C4 0028
MMCDRR
MMC Data Receive Register
0x01C4 002C
MMCDXR
MMC Data Transmit Register
0x01C4 0030
MMCCMD
MMC Command Register
0x01C4 0034
MMCARGHL
MMC Argument Register
0x01C4 0038
MMCRSP01
MMC Response Register 0 and 1
0x01C4 003C
MMCRSP23
MMC Response Register 2 and 3
0x01C4 0040
MMCRSP45
MMC Response Register 4 and 5
0x01C4 0044
MMCRSP67
MMC Response Register 6 and 7
0x01C4 0048
MMCDRSP
MMC Data Response Register
0x01C4 0050
MMCCIDX
MMC Command Index Register
0x01C4 0064
SDIOCTL
SDIO Control Register
0x01C4 0068
SDIOST0
SDIO Status Register 0
0x01C4 006C
SDIOIEN
SDIO Interrupt Enable Register
0x01C4 0070
SDIOIST
SDIO Interrupt Status Register
0x01C4 0074
MMCFIFOCTL
MMC FIFO Control Register
106
Peripheral Information and Electrical Specifications
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