Nvidia TEGRA DG-04927-001_V01 - Manual (Page 33)

Tegra 200 Series Developer Board User Guide
DG-04927-001_v01 Advance Information – Subject to Change 33
NVIDIA CONFIDENTIAL
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
VDDIO_NAND
VDDIO_NAND 3.3V
D2
D3
VDD
CLK
GND
D0
D1
WP_N
C_DETECT_N
CMD
GND_EMI2
0.1uf
GND_EMI2
D4
D5
D2
D3
CMD
GND
VDD
GND
CLK
GND
D1
D6
D7
D0
0.1uf
47
K
Ω
47
K
Ω
47
K
Ω
47
K
Ω
10
K
Ω
47
K
Ω
47
K
Ω
47
K
Ω
47
K
Ω Tegra
HSMMC_CMD
HSMMC_CLK
HSMMC_DAT7
HSMMC_DAT6
HSMMC_DAT4
HSMMC_DAT0
HSMMC_DAT1
HSMMC_DAT5
HSMMC_DAT3
HSMMC_DAT2
GMI_DPD
GMI_CS5_N
GMI_AD27
GMI_AD26
GMI_AD25
GMI_AD24
GMI_AD23
GMI_AD22
GMI_AD21
GMI_AD20
GMI_AD10
GMI_AD11
GPIO_PH2 (HSMMC_CD_N)
GPIO_PH3 (HSMMC_WP)
eMMC Core (2.85V)
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