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TMS320C6748
www.ti.com
SPRS590G – JUNE 2009 – REVISED JANUARY 2017
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TMS320C6748
Peripheral Information and Electrical Specifications
Copyright © 2009–2017, Texas Instruments Incorporated
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 6-39. Multimedia Card/Secure Digital (MMC/SD) Card Controller Registers
MMCSD0
BYTE ADDRESS
MMCSD1
BYTE ADDRESS
ACRONYM
REGISTER DESCSRIPTION
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