LG -P970 Service Manual page 80

3.12.2.10 MMC/SD/SDIO
The Multimedia card high speed/ SD /SDIO(MMC/SD/SDIO) host controller provides an interface between a local host
such as a microprocessor unit or digital signal processor and either MMC, SD memory cards or SDIO cards and handles
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MMC/SD/SDIO transactions with minimal local host intervention.
Device
PRCM
LGE Internal Use Only
TI Confidential — NDA Restrictions
Figure 24-1. MMC/SD/SDio1 and 3 overview
SCM
MPU INTC
System DMA
controller
(sDMA)
Wakeup from mmc3_dat1 pin (SDIO interrupt) using GPIO
GPIO
Wakeup from mmc1_dat1 pin (SDIO interrupt) using GPIO
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3. TECHNICAL BRIEF
L4
MMC/SD/SDIO1
interconnect
controller
MMC1_IRQ
MMC1_FCLK
MMC1_32K
MMC1_SWAKEUP
MMC1_DMA_RX
MMC1_DMA_TX
L4
MMC/SD/SDIO3
interconnect
controller
MMC3_IRQ
MMC3_DMA_RX
MMC3_DMA_TX
96MHz
MMC3_FCLK
32kHz
MMC3_32K
MMC3_SWAKEUP
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MMC/SD/SDIO Overview
vdds_mmc1
PBIAS0 cell
vdds_sim
PBIAS1 cell
mmc1_clk
mmc1_cmd
mmc1_dat[3:0]
4
1
mmc3_clk
mmc3_cmd
mmc3_dat[7:0]
8
1
mmchs-001
Only for training and service purposes