MMC Cards
(8 bit)
CLK
DATA0
Connector VDD Plane
CMD
DATA1
DATA2
DATA3
MMCHS
Controller
L4 Peripheral
Interconnect
MMC/SD I/F
Pads
MPU
Subsystem
EDMA
SINTERRUPTN
SDMARREQN
SDMAWREQN
CLKADPI
SWAKEUP
MMC_CLK
MMC_CMD
MMC_DAT0
MMC_DAT1
MMC_DAT2
MMC_POW
MMC_SDCD
MMC_SDWP
MMC_OBI
CLK32K
MMC_DAT3
DATA4
MMC_DAT4
DATA5
MMC_DAT5
DATA6
MMC_DAT6
DATA7
MMC_DAT7
PER_CLKOUTM2
(192 MHz)
PRCM
/2
CLK_32KHZ
+V
Power Switch
Integration
Figure 18-3. MMCHS Module MMC Application
18.2.1 MMCHS Connectivity Attributes
The general connectivity attributes for the three MMCHS modules are shown in
Table 18-2. MMCHS Connectivity Attributes
Attributes
Type
Power Domain
Peripheral Domain
Clock Domain
PD_PER_L4LS_GCLK (OCP)
PD_PER_MMC_FCLK (Func)
CLK_32KHZ (Debounce)
Reset Signals
PER_DOM_RST_N
Idle/Wakeup Signals
Smart Idle
Interrupt Requests
1 interrupt per instance to MPU Subsystem (MMCSDxINT)
DMA Requests
2 DMA requests per instance to EDMA (SDTXEVTx,
SDRXEVTx)
(Active low, need to be inverted in glue logic)
Physical Address
L4 Peripheral slave port
3347
SPRUH73H – October 2011 – Revised April 2013
Multimedia Card (MMC)
Copyright © 2011–2013, Texas Instruments Incorporated