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4.8.2 eMMC Device Connections
The SD/MMC interface can support a variety of flash memory devices. The Tegra 200 Series Developer Board uses a
combination 4-bit SD/MMC and 8-bit MMC socket to support either standard SD/MMC cards, or proprietary modules with eMMC
(embedded MMC) or other compatible devices for storage and possibly boot options. One available module that can be used
with this socket supports eMMC. The example in Figure 21 shows a connection example that will work with the eMMC module
as both the boot and mass storage device.
Figure 21. Tegra 200 Series Developer Board Reference design 4/8-bit "Captive" SD/MMC Card Socket Connection Example
Tegra
HSMMC_DAT4
GMI_AD24
HSMMC_DAT5
GMI_AD25
HSMMC_DAT2
GMI_AD22
HSMMC_DAT3
GMI_AD23
HSMMC_CMD
GMI_DPD
HSMMC_CLK
GMI_CS5_N
HSMMC_DAT0
GMI_AD20
HSMMC_DAT1
GMI_AD21
HSMMC_DAT6
GMI_AD26
HSMMC_DAT7
GMI_AD27
GPIO_PH2 (HSMMC_CD_N)
GMI_AD10
GPIO_PH3 (HSMMC_WP)
GMI_AD11
VDDIO_NAND
DG-04927-001_v01
VDDIO_NAND
The Tegra 200 Series Developer Board uses this
socket to as an internal means to support assorted
boot/storage devices including eMMC. This
header is included to provide a core supply to an
eMMC module. Not needed if eMMC or other
device directly on-board
eMMC Core (2.85V)
3.3V
Advance Information – Subject to Change
NVIDIA CONFIDENTIAL
Tegra 200 Series Developer Board User Guide
0.1uf
GND_EMI2
D4
D5
D2
D3
CMD
GND
VDD
CLK
GND
D0
D1
D6
D7
D2
D3
CMD
GND
VDD
CLK
0.1uf
GND
D0
D1
C_DETECT_N
WP_N
GND_EMI2
33
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