Kontron SMARC-sA3874i Manual de usuario Pagina 35

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User’s Guide
3.2.17 SDMMC Interface for Carrier eMMC
The ULP-COM sA3874i module supports an 8bit SDMMC interface that may be used with a Carrier based eMMC
device. The ULP-COM specification provides for an SDMMC data path that may be up to 8 bits wide. The signaling
level is at the Module I/O voltage level of 1.8V.
SDMMC interface signals are exposed on the ULP-COM sA3874i edge connector as shown below:
ULP-COM sA3874i Edge finger
TI Cortex A8 CPU
Net Name
Notes
Pin #
Pin Name
Pin #
Pin Name
S26
SDMMC_D0
R7
SD0_DAT[0]
SDMMC_D[0]
SDMMC Data
S27
SDMMC_D1
Y5
SD0_DAT[1]
SDMMC_D[1]
S28
SDMMC_D2
Y3
SD0_DAT[2]
SDMMC_D[2]
S29
SDMMC_D3
Y4
SD0_DAT[3]
SDMMC_D[3]
S30
SDMMC_D4
V4
SD0_DAT[4]
SDMMC_D[4]
S31
SDMMC_D5
T6
SD0_DAT[5]
SDMMC_D[5]
S32
SDMMC_D6
N2
SD0_DAT[6]
SDMMC_D[6]
S33
SDMMC_D7
V6
SD0_DAT[7]
SDMMC_D[7]
S35
SDMMC_CK
Y6
SD0_CLK/GP0[1]
SDMMC_CK
SDMMC Clock
S36
SDMMC_CMD
N1
SD0_CMD/SD1_CMD/
GP0[2]
SDMMC_CMD
SDMMC Command
S37
SDMMC_RST#
SDMMC_RST
Reset signal to
Carrier eMMC flash
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